feat: populate duration_seconds on anime upsert and add backfill fix

Add ring, border separator, font-normal, and focus-visible styles to search and command palette.

.golangci.yml

@@ -0,0 +1,54 @@
+version: "2"
+
+linters:
+  default: none
+  enable:
+    - copyloopvar
+    - errcheck
+    - govet
+    - ineffassign
+    - revive
+    - staticcheck
+    - unconvert
+    - unused
+  settings:
+    revive:
+      enable-all-rules: false
+      rules:
+        - name: blank-imports
+        - name: context-as-argument
+        - name: context-keys-type
+        - name: early-return
+        - name: error-naming
+        - name: error-return
+        - name: if-return
+        - name: increment-decrement
+        - name: range
+        - name: receiver-naming
+        - name: time-naming
+        - name: unnecessary-stmt
+        - name: var-declaration
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+      - node_modules$
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0
+
+formatters:
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

.oxfmtrc.json

@@ -0,0 +1,4 @@
+{
+  "$schema": "./node_modules/oxfmt/configuration_schema.json",
+  "ignorePatterns": []
+}

.oxlintignore

@@ -0,0 +1,4 @@
+dist/**
+node_modules/**
+server
+*.js

.oxlintrc.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "./node_modules/oxlint/configuration_schema.json",
+  "plugins": ["typescript", "unicorn", "oxc"],
+  "categories": {
+    "correctness": "error"
+  },
+  "rules": {
+    "typescript/unbound-method": "off",
+    "typescript/no-base-to-string": "off",
+    "typescript/no-floating-promises": "off"
+  },
+  "env": {
+    "builtin": true
+  }
+}

Dockerfile

@@ -5,14 +5,22 @@ WORKDIR /app
 # Enable CGO for sqlite3
 ENV CGO_ENABLED=1
 
-# Install sqlc for code generation
-RUN go install github.com/sqlc-dev/sqlc/cmd/sqlc@v1.30.0
+RUN apt-get update && apt-get install -y --no-install-recommends \
+  ca-certificates \
+  curl \
+  unzip \
+  gcc \
+  libc6-dev \
+  libsqlite3-dev \
+  && rm -rf /var/lib/apt/lists/*
 
-# Install build dependencies for bun + assets
-RUN apt-get update && apt-get install -y ca-certificates sqlite3 curl unzip && rm -rf /var/lib/apt/lists/*
+# Install bun (for building frontend assets)
 RUN curl -fsSL https://bun.sh/install | bash
 ENV PATH="/root/.bun/bin:${PATH}"
 
+# Install sqlc for code generation
+RUN go install github.com/sqlc-dev/sqlc/cmd/sqlc@v1.30.0
+
 ENV GOPROXY=direct
 COPY go.mod go.sum ./
 RUN go mod download
@@ -31,6 +39,7 @@ RUN sqlc generate
 
 # Build the server and CLI tools
 RUN go build -ldflags="-s -w" -o main_server ./cmd/server
+RUN go build -ldflags="-s -w" -o create-user ./cmd/user
 
 FROM debian:bookworm-slim
 
@@ -46,11 +55,12 @@ RUN mkdir -p /app/data
 ENV DATABASE_FILE=/app/data/mal.db
 
 COPY --from=builder /app/main_server .
+COPY --from=builder /app/create-user .
 COPY --from=builder /app/templates ./templates
 COPY --from=builder /app/static ./static
 COPY --from=builder /app/dist ./dist
 COPY --from=builder /app/internal/database/migrations ./migrations
-COPY docker/entrypoint.sh ./entrypoint.sh
+COPY entrypoint.sh ./entrypoint.sh
 
 EXPOSE 3000
 

README.md

@@ -1,136 +1,71 @@
 # MyAnimeList
 
-<table align="center">
-  <tr>
-    <td>
-      <picture>
-        <source media="(prefers-color-scheme: dark)" srcset="/static/assets/readme-logo-dark.svg" />
-        <img src="/static/assets/readme-logo-light.svg" alt="MyAnimeList logo" width="140" />
-      </picture>
-    </td>
-    <td>
-      <strong>MyAnimeList</strong><br />
-      My personal anime tracker, built because nothing else felt right.
-    </td>
-  </tr>
-</table>
+<p align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="/static/assets/readme-logo-dark.svg" />
+    <img src="/static/assets/readme-logo-light.svg" alt="MyAnimeList logo" width="120" />
+  </picture>
+</p>
 
 <p align="center">
   <img alt="Go" src="https://img.shields.io/badge/go-1.25-00ADD8?style=flat-square&logo=go" />
   <img alt="SQLite" src="https://img.shields.io/badge/database-sqlite-003B57?style=flat-square&logo=sqlite" />
-  <img alt="Tailwind" src="https://img.shields.io/badge/tailwind-4-06B6D4?style=flat-square&logo=tailwindcss" />
+  <img alt="Tailwind" src="https://img.shields.io/badge/tailwind-4-06D6D4?style=flat-square&logo=tailwindcss" />
   <img alt="HTMX" src="https://img.shields.io/badge/htmx-partial--updates-3366CC?style=flat-square" />
 </p>
 
 ---
 
-## Why this project exists
+I built this because nothing else felt right. Every tracker I tried had decent pieces but the whole never clicked — awkward UI, missing features, or it just got in the way of actually watching anime. So I built one that fits how I work.
 
-I built this for myself.
+It is a self-hosted Go server that streams anime through a proxy layer, catalogs metadata, and tracks your progress.
 
-I was frustrated with the UI and UX of every tracker I tried. Even when something looked decent, it still felt awkward to use day-to-day, or it was missing pieces I considered essential. I wanted one place that matched how I actually watch anime: search fast, get context fast, update status fast, and move on.
-
-So this project is personal first and public second. I put it on GitHub because I like shipping in the open, not because it was originally designed as a general-purpose product for everyone.
-
-Technically, I also wanted to prove that a small, server-rendered Go app could stay reliable even when upstream anime APIs are inconsistent. A lot of this code exists because real APIs rate-limit, timeout, and occasionally fail at the worst possible moment.
-
-## What the application offers
-
-For my own workflow, MyAnimeList combines catalog browsing, seasonal discovery, quick search, detail pages with recommendations and relations, watchlist management, continue-watching, and in-app playback in one server-rendered interface.
-
-The interface is minimal and functional, featuring a dark theme and quick access to tracking tools.
-
-## Technical approach
-
-The application is written in Go and rendered on the server with `html/template`, with SQLite as the primary datastore and `sqlc` for typed query generation. Styling uses Tailwind CSS v4. HTMX and small TypeScript modules handle incremental interactions, which keeps the interface responsive without moving the entire product into a heavy client-side architecture.
-
-The external anime data source is Jikan (`https://api.jikan.moe/v4`). Because reliability is a first-class concern, the client layer includes request pacing, bounded retries, backoff behavior, stale-cache fallback, and a persisted retry queue for failed fetches. Playback proxying uses uTLS to bypass Cloudflare protections.
-
-Upstream APIs can fail transiently with `429` and `5xx` responses, so the app favors graceful degradation over hard failure. Cached values are used when fresh requests fail, retryable failures are persisted and replayed in a background worker, and relation synchronization is incremental so one bad fetch does not block the rest of the graph.
+The frontend is Tailwind CSS v4 with HTMX handling pagination, infinite scroll, search, and watchlist interactions. TypeScript only steps in where HTMX cannot — the video player, command palette bound to Cmd+K, skip segment editor, theme toggling with system preference detection, and custom UI components. Everything lives in one process, one SQLite database, one deployment.
 
 ## Repository structure
 
-The codebase follows standard Go project layout conventions.
-
 | Path              | Purpose                                          |
 | ----------------- | ------------------------------------------------ |
 | `api/*`           | Feature routes: anime, auth, playback, watchlist |
 | `cmd/server`      | Application entrypoint and CLI commands          |
+| `cmd/user`        | User management CLI (create, update, delete)     |
 | `integrations/*`  | External API clients and scraping                |
 | `internal/*`      | Core services: db, middleware, server, worker    |
 | `pkg/middleware`  | Generic HTTP middleware                          |
 | `templates/*`     | Server-rendered HTML templates                   |
-| `migrations`      | Schema evolution                                 |
+| `migrations`      | Schema evolution (20 migrations)                 |
 | `static` / `dist` | Frontend assets                                  |
 
-## Getting started
+## Running locally
 
-Requires Go `1.25+`, Bun, and [just](https://github.com/casey/just) (`brew install just`).
+Requires Go `1.25+`, Bun, and [just](https://github.com/casey/just). Migrations run on startup. Configuration lives in environment variables — see `cmd/server/main.go` for the full list.
+
+An optional API key from [animeschedule.net](https://animeschedule.net) can be used for the schedule board to enable English titles and improve performance. Create an account, generate a token under your profile, and set it as `ANIMESCHEDULE_API_TOKEN`.
 
 ```bash
-git clone https://github.com/mkelvers/mal.git && cd mal
-openssl rand -base32 32
-PLAYBACK_PROXY_SECRET="your-32-char-secret" go run ./cmd/server
-go run ./cmd/user <username> <password>
+just dev
 ```
 
-The app runs at `http://localhost:3000`.
-
-### Tasks
-
-The justfile automates common tasks:
-
-```bash
-just fmt          # format go code
-just lint         # go fmt && go vet
-just test         # run go tests
-just build        # build go binary + frontend
-just check        # lint, test, typecheck, build
-just dev          # build and run
-just install-hooks   # install pre-push hooks
-```
-
-### Docker
-
-```bash
-docker build -t mal .
-docker run --rm -p 3000:3000 -e PLAYBACK_PROXY_SECRET="$(openssl rand -base32 32)" mal
-
-# persistent data
-docker run --rm -p 3000:3000 \
-  -e DATABASE_FILE=/app/data/mal.db \
-  -e PLAYBACK_PROXY_SECRET="your-secret" \
-  -v "$(pwd)/data:/app/data" \
-  mal
-
-docker exec mal ./cmd/user <username> <password>
-```
-
-## Configuration
-
-| Variable                | Default             | Description                                                 |
-| ----------------------- | ------------------- | ----------------------------------------------------------- |
-| `PORT`                  | `3000`              | HTTP listen port                                            |
-| `DATABASE_FILE`         | `mal.db`            | SQLite database file path                                   |
-| `ENV`                   | _(empty)_           | Set to `production` to enable secure session cookies        |
-| `MIGRATIONS_DIR`        | _(auto-discovered)_ | Optional explicit path to migration files                   |
-| `PLAYBACK_PROXY_SECRET` | _(required)_        | HMAC secret for signed playback proxy tokens (min 32 chars) |
-| `MAL_JIKAN_TRACE`       | `false`             | Log all Jikan cache/upstream timings when enabled           |
-
-## Testing
-
-Run locally with `just check` or manually:
+## Quality checks
 
 ```bash
+gofmt -l .
 go test ./...
+go build -o server ./cmd/server
+golangci-lint run ./...
+go mod tidy
+go test -race ./...
+bunx oxfmt --check
+bun run lint:ts
+bun run typecheck
+bun run build:assets
+docker build -t mal:ci .
 ```
 
-Migrations run automatically on startup.
+## Contributing
 
-## Security
-
-Keep secrets out of version control, do not publish real credentials in documentation or screenshots, and report security issues privately before public disclosure.
+Bug reports and pull requests are welcome. This is a personal project, so there is no strict roadmap or issue triage cycle. If something is broken or missing, open an issue or send a PR.
 
 ## License
 
-This project is released under the MIT License. See `LICENSE` for details.
+MIT. See `LICENSE`.

bun.lock

@@ -5,49 +5,22 @@
     "": {
       "name": "myanimelist-ui",
       "dependencies": {
-        "dompurify": "^3.4.1",
+        "htmx.org": "1.9.12",
       },
       "devDependencies": {
-        "@tailwindcss/cli": "^4.2.4",
-        "@toolwind/anchors": "^1.0.10",
-        "@typescript-eslint/eslint-plugin": "^8.59.2",
-        "@typescript-eslint/parser": "^8.59.2",
-        "eslint": "^10.3.0",
-        "eslint-config-prettier": "^10.1.8",
-        "eslint-plugin-prettier": "^5.5.5",
+        "@tailwindcss/cli": "^4.3.0",
+        "@types/node": "^24.0.0",
         "jiti": "^2.7.0",
         "lefthook": "^2.1.6",
-        "prettier": "^3.8.3",
-        "tailwindcss": "^4.2.4",
+        "oxfmt": "^0.52.0",
+        "oxlint": "^1.67.0",
+        "oxlint-tsgolint": "^0.23.0",
+        "tailwindcss": "^4.3.0",
         "typescript": "^6.0.3",
       },
     },
   },
   "packages": {
-    "@eslint-community/eslint-utils": ["@eslint-community/eslint-utils@4.9.1", "", { "dependencies": { "eslint-visitor-keys": "^3.4.3" }, "peerDependencies": { "eslint": "^6.0.0 || ^7.0.0 || >=8.0.0" } }, "sha512-phrYmNiYppR7znFEdqgfWHXR6NCkZEK7hwWDHZUjit/2/U0r6XvkDl0SYnoM51Hq7FhCGdLDT6zxCCOY1hexsQ=="],
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-
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-
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@@ -86,154 +147,52 @@
 
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-    "flat-cache": ["flat-cache@4.0.1", "", { "dependencies": { "flatted": "^3.2.9", "keyv": "^4.5.4" } }, "sha512-f7ccFPK3SXFHpx15UIGyRJ/FJQctuKZ0zVuN3frBo4HnK3cay9VEW0R6yPYFHC0AgqhukPzKjq22t5DmAyqGyw=="],
-
-    "flatted": ["flatted@3.4.2", "", {}, "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA=="],
-
-    "glob-parent": ["glob-parent@6.0.2", "", { "dependencies": { "is-glob": "^4.0.3" } }, "sha512-XxwI8EOhVQgWp6iDL+3b0r86f4d6AX6zSU55HfB4ydCEuXLXc5FcYeOu+nnGftS4TEju/11rt4KJPTMgbfmv4A=="],
+    "enhanced-resolve": ["enhanced-resolve@5.23.0", "", { "dependencies": { "graceful-fs": "^4.2.4", "tapable": "^2.3.3" } }, "sha512-yJN/BOOLxcOW2aQgeif9mSnaUB8KtvmMMp56oA1kx1CRfBKbhZm2pJ+NBY+3eOboHxix8lfjWpHE0Ei5U8RbSA=="],
 
     "graceful-fs": ["graceful-fs@4.2.11", "", {}, "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ=="],
 
-    "ignore": ["ignore@7.0.5", "", {}, "sha512-Hs59xBNfUIunMFgWAbGX5cq6893IbWg4KnrjbYwX3tx0ztorVgTDA6B2sxf8ejHJ4wz8BqGUMYlnzNBer5NvGg=="],
-
-    "imurmurhash": ["imurmurhash@0.1.4", "", {}, "sha512-JmXMZ6wuvDmLiHEml9ykzqO6lwFbof0GG4IkcGaENdCRDDmMVnny7s5HsIgHCbaq0w2MyPhDqkhTUgS2LU2PHA=="],
+    "htmx.org": ["htmx.org@1.9.12", "", {}, "sha512-VZAohXyF7xPGS52IM8d1T1283y+X4D+Owf3qY1NZ9RuBypyu9l8cGsxUMAG5fEAb/DhT7rDoJ9Hpu5/HxFD3cw=="],
 
     "is-extglob": ["is-extglob@2.1.1", "", {}, "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ=="],
 
     "is-glob": ["is-glob@4.0.3", "", { "dependencies": { "is-extglob": "^2.1.1" } }, "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg=="],
 
-    "isexe": ["isexe@2.0.0", "", {}, "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw=="],
-
     "jiti": ["jiti@2.7.0", "", { "bin": { "jiti": "lib/jiti-cli.mjs" } }, "sha512-AC/7JofJvZGrrneWNaEnJeOLUx+JlGt7tNa0wZiRPT4MY1wmfKjt2+6O2p2uz2+skll8OZZmJMNqeke7kKbNgQ=="],
 
-    "json-buffer": ["json-buffer@3.0.1", "", {}, "sha512-4bV5BfR2mqfQTJm+V5tPPdf+ZpuhiIvTuAB5g8kcrXOZpTT/QwwVRWBywX1ozr6lEuPdbHxwaJlm9G6mI2sfSQ=="],
-
-    "json-schema-traverse": ["json-schema-traverse@0.4.1", "", {}, "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg=="],
-
-    "json-stable-stringify-without-jsonify": ["json-stable-stringify-without-jsonify@1.0.1", "", {}, "sha512-Bdboy+l7tA3OGW6FjyFHWkP5LuByj1Tk33Ljyq0axyzdk9//JSi2u3fP1QSmd1KNwq6VOKYGlAu87CisVir6Pw=="],
-
-    "keyv": ["keyv@4.5.4", "", { "dependencies": { "json-buffer": "3.0.1" } }, "sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw=="],
-
     "lefthook": ["lefthook@2.1.6", "", { "optionalDependencies": { "lefthook-darwin-arm64": "2.1.6", "lefthook-darwin-x64": "2.1.6", "lefthook-freebsd-arm64": "2.1.6", "lefthook-freebsd-x64": "2.1.6", "lefthook-linux-arm64": "2.1.6", "lefthook-linux-x64": "2.1.6", "lefthook-openbsd-arm64": "2.1.6", "lefthook-openbsd-x64": "2.1.6", "lefthook-windows-arm64": "2.1.6", "lefthook-windows-x64": "2.1.6" }, "bin": { "lefthook": "bin/index.js" } }, "sha512-w9sBoR0mdN+kJc3SB85VzpiAAl451/rxdCRcZlwW71QLjkeH3EBQFgc4VMj5apePychYDHAlqEWTB8J8JK/j1Q=="],
 
     "lefthook-darwin-arm64": ["lefthook-darwin-arm64@2.1.6", "", { "os": "darwin", "cpu": "arm64" }, "sha512-hyB7eeiX78BS66f70byTJacDLC/xV1vgMv9n+idFUsrM7J3Udd/ag9Ag5NP3t0eN0EqQqAtrNnt35EH01lxnRQ=="],
@@ -256,8 +215,6 @@
 
     "lefthook-windows-x64": ["lefthook-windows-x64@2.1.6", "", { "os": "win32", "cpu": "x64" }, "sha512-q4z2n3xucLscoWiyMwFViEj3N8MDSkPulMwcJYuCYFHoPhP1h+icqNu7QRLGYj6AnVrCQweiUJY3Tb2X+GbD/A=="],
 
-    "levn": ["levn@0.4.1", "", { "dependencies": { "prelude-ls": "^1.2.1", "type-check": "~0.4.0" } }, "sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ=="],
-
     "lightningcss": ["lightningcss@1.32.0", "", { "dependencies": { "detect-libc": "^2.0.3" }, "optionalDependencies": { "lightningcss-android-arm64": "1.32.0", "lightningcss-darwin-arm64": "1.32.0", "lightningcss-darwin-x64": "1.32.0", "lightningcss-freebsd-x64": "1.32.0", "lightningcss-linux-arm-gnueabihf": "1.32.0", "lightningcss-linux-arm64-gnu": "1.32.0", "lightningcss-linux-arm64-musl": "1.32.0", "lightningcss-linux-x64-gnu": "1.32.0", "lightningcss-linux-x64-musl": "1.32.0", "lightningcss-win32-arm64-msvc": "1.32.0", "lightningcss-win32-x64-msvc": "1.32.0" } }, "sha512-NXYBzinNrblfraPGyrbPoD19C1h9lfI/1mzgWYvXUTe414Gz/X1FD2XBZSZM7rRTrMA8JL3OtAaGifrIKhQ5yQ=="],
 
     "lightningcss-android-arm64": ["lightningcss-android-arm64@1.32.0", "", { "os": "android", "cpu": "arm64" }, "sha512-YK7/ClTt4kAK0vo6w3X+Pnm0D2cf2vPHbhOXdoNti1Ga0al1P4TBZhwjATvjNwLEBCnKvjJc2jQgHXH0NEwlAg=="],
@@ -282,88 +239,44 @@
 
     "lightningcss-win32-x64-msvc": ["lightningcss-win32-x64-msvc@1.32.0", "", { "os": "win32", "cpu": "x64" }, "sha512-Amq9B/SoZYdDi1kFrojnoqPLxYhQ4Wo5XiL8EVJrVsB8ARoC1PWW6VGtT0WKCemjy8aC+louJnjS7U18x3b06Q=="],
 
-    "locate-path": ["locate-path@6.0.0", "", { "dependencies": { "p-locate": "^5.0.0" } }, "sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw=="],
-
     "magic-string": ["magic-string@0.30.21", "", { "dependencies": { "@jridgewell/sourcemap-codec": "^1.5.5" } }, "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ=="],
 
-    "minimatch": ["minimatch@10.2.5", "", { "dependencies": { "brace-expansion": "^5.0.5" } }, "sha512-MULkVLfKGYDFYejP07QOurDLLQpcjk7Fw+7jXS2R2czRQzR56yHRveU5NDJEOviH+hETZKSkIk5c+T23GjFUMg=="],
-
     "mri": ["mri@1.2.0", "", {}, "sha512-tzzskb3bG8LvYGFF/mDTpq3jpI6Q9wc3LEmBaghu+DdCssd1FakN7Bc0hVNmEyGq1bq3RgfkCb3cmQLpNPOroA=="],
 
-    "ms": ["ms@2.1.3", "", {}, "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="],
-
-    "natural-compare": ["natural-compare@1.4.0", "", {}, "sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw=="],
-
     "node-addon-api": ["node-addon-api@7.1.1", "", {}, "sha512-5m3bsyrjFWE1xf7nz7YXdN4udnVtXK6/Yfgn5qnahL6bCkf2yKt4k3nuTKAtT4r3IG8JNR2ncsIMdZuAzJjHQQ=="],
 
-    "optionator": ["optionator@0.9.4", "", { "dependencies": { "deep-is": "^0.1.3", "fast-levenshtein": "^2.0.6", "levn": "^0.4.1", "prelude-ls": "^1.2.1", "type-check": "^0.4.0", "word-wrap": "^1.2.5" } }, "sha512-6IpQ7mKUxRcZNLIObR0hz7lxsapSSIYNZJwXPGeF0mTVqGKFIXj1DQcMoT22S3ROcLyY/rz0PWaWZ9ayWmad9g=="],
+    "oxfmt": ["oxfmt@0.52.0", "", { "dependencies": { "tinypool": "2.1.0" }, "optionalDependencies": { "@oxfmt/binding-android-arm-eabi": "0.52.0", "@oxfmt/binding-android-arm64": "0.52.0", "@oxfmt/binding-darwin-arm64": "0.52.0", "@oxfmt/binding-darwin-x64": "0.52.0", "@oxfmt/binding-freebsd-x64": "0.52.0", "@oxfmt/binding-linux-arm-gnueabihf": "0.52.0", "@oxfmt/binding-linux-arm-musleabihf": "0.52.0", "@oxfmt/binding-linux-arm64-gnu": "0.52.0", "@oxfmt/binding-linux-arm64-musl": "0.52.0", "@oxfmt/binding-linux-ppc64-gnu": "0.52.0", "@oxfmt/binding-linux-riscv64-gnu": "0.52.0", "@oxfmt/binding-linux-riscv64-musl": "0.52.0", "@oxfmt/binding-linux-s390x-gnu": "0.52.0", "@oxfmt/binding-linux-x64-gnu": "0.52.0", "@oxfmt/binding-linux-x64-musl": "0.52.0", "@oxfmt/binding-openharmony-arm64": "0.52.0", "@oxfmt/binding-win32-arm64-msvc": "0.52.0", "@oxfmt/binding-win32-ia32-msvc": "0.52.0", "@oxfmt/binding-win32-x64-msvc": "0.52.0" }, "peerDependencies": { "svelte": "^5.0.0", "vite-plus": "*" }, "optionalPeers": ["svelte", "vite-plus"], "bin": { "oxfmt": "bin/oxfmt" } }, "sha512-nJlYM35F64zTDMecCNhoHNkf+D/eHv7xcjj9XDSj+bFAVtN93m7v8DQMdHd6nDG6Akf/kEYYHmDUBs2Dz27Sug=="],
 
-    "p-limit": ["p-limit@3.1.0", "", { "dependencies": { "yocto-queue": "^0.1.0" } }, "sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ=="],
+    "oxlint": ["oxlint@1.67.0", "", { "optionalDependencies": { "@oxlint/binding-android-arm-eabi": "1.67.0", "@oxlint/binding-android-arm64": "1.67.0", "@oxlint/binding-darwin-arm64": "1.67.0", "@oxlint/binding-darwin-x64": "1.67.0", "@oxlint/binding-freebsd-x64": "1.67.0", "@oxlint/binding-linux-arm-gnueabihf": "1.67.0", "@oxlint/binding-linux-arm-musleabihf": "1.67.0", "@oxlint/binding-linux-arm64-gnu": "1.67.0", "@oxlint/binding-linux-arm64-musl": "1.67.0", "@oxlint/binding-linux-ppc64-gnu": "1.67.0", "@oxlint/binding-linux-riscv64-gnu": "1.67.0", "@oxlint/binding-linux-riscv64-musl": "1.67.0", "@oxlint/binding-linux-s390x-gnu": "1.67.0", "@oxlint/binding-linux-x64-gnu": "1.67.0", "@oxlint/binding-linux-x64-musl": "1.67.0", "@oxlint/binding-openharmony-arm64": "1.67.0", "@oxlint/binding-win32-arm64-msvc": "1.67.0", "@oxlint/binding-win32-ia32-msvc": "1.67.0", "@oxlint/binding-win32-x64-msvc": "1.67.0" }, "peerDependencies": { "oxlint-tsgolint": ">=0.22.1", "vite-plus": "*" }, "optionalPeers": ["oxlint-tsgolint", "vite-plus"], "bin": { "oxlint": "bin/oxlint" } }, "sha512-blwwaHPdoH8piQ5/z0KHeoHFR7FZgl12WluKJfu4qFLPkZl6mK04PkLE45Fw1NxfBRSlh40Gu7MkxHUw++ociQ=="],
 
-    "p-locate": ["p-locate@5.0.0", "", { "dependencies": { "p-limit": "^3.0.2" } }, "sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw=="],
-
-    "path-exists": ["path-exists@4.0.0", "", {}, "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w=="],
-
-    "path-key": ["path-key@3.1.1", "", {}, "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q=="],
+    "oxlint-tsgolint": ["oxlint-tsgolint@0.23.0", "", { "optionalDependencies": { "@oxlint-tsgolint/darwin-arm64": "0.23.0", "@oxlint-tsgolint/darwin-x64": "0.23.0", "@oxlint-tsgolint/linux-arm64": "0.23.0", "@oxlint-tsgolint/linux-x64": "0.23.0", "@oxlint-tsgolint/win32-arm64": "0.23.0", "@oxlint-tsgolint/win32-x64": "0.23.0" }, "bin": { "tsgolint": "bin/tsgolint.js" } }, "sha512-3mBv3CoPbh8dFbzfDGIWa2ytZjn2v+3EX4aKRXjIhsoGFzG8GCjfRirz3rwZf1wYbZzsNLTSgpw8VjQuWdp/jA=="],
 
     "picocolors": ["picocolors@1.1.1", "", {}, "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA=="],
 
     "picomatch": ["picomatch@4.0.4", "", {}, "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A=="],
 
-    "prelude-ls": ["prelude-ls@1.2.1", "", {}, "sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g=="],
-
-    "prettier": ["prettier@3.8.3", "", { "bin": { "prettier": "bin/prettier.cjs" } }, "sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw=="],
-
-    "prettier-linter-helpers": ["prettier-linter-helpers@1.0.1", "", { "dependencies": { "fast-diff": "^1.1.2" } }, "sha512-SxToR7P8Y2lWmv/kTzVLC1t/GDI2WGjMwNhLLE9qtH8Q13C+aEmuRlzDst4Up4s0Wc8sF2M+J57iB3cMLqftfg=="],
-
-    "punycode": ["punycode@2.3.1", "", {}, "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg=="],
-
-    "semver": ["semver@7.8.0", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-AcM7dV/5ul4EekoQ29Agm5vri8JNqRyj39o0qpX6vDF2GZrtutZl5RwgD1XnZjiTAfncsJhMI48QQH3sN87YNA=="],
-
-    "shebang-command": ["shebang-command@2.0.0", "", { "dependencies": { "shebang-regex": "^3.0.0" } }, "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA=="],
-
-    "shebang-regex": ["shebang-regex@3.0.0", "", {}, "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A=="],
-
     "source-map-js": ["source-map-js@1.2.1", "", {}, "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="],
 
-    "synckit": ["synckit@0.11.12", "", { "dependencies": { "@pkgr/core": "^0.2.9" } }, "sha512-Bh7QjT8/SuKUIfObSXNHNSK6WHo6J1tHCqJsuaFDP7gP0fkzSfTxI8y85JrppZ0h8l0maIgc2tfuZQ6/t3GtnQ=="],
+    "tailwindcss": ["tailwindcss@4.3.0", "", {}, "sha512-y6nxMGB1nMW9R6k96e5gdIFzcfL/gTJRNaqGes1YvkLnPVXzWgbqFF2yLC0T8G774n24cx3Pe8XrKoniCOAH+Q=="],
 
-    "tailwindcss": ["tailwindcss@4.2.4", "", {}, "sha512-HhKppgO81FQof5m6TEnuBWCZGgfRAWbaeOaGT00KOy/Pf/j6oUihdvBpA7ltCeAvZpFhW3j0PTclkxsd4IXYDA=="],
+    "tapable": ["tapable@2.3.3", "", {}, "sha512-uxc/zpqFg6x7C8vOE7lh6Lbda8eEL9zmVm/PLeTPBRhh1xCgdWaQ+J1CUieGpIfm2HdtsUpRv+HshiasBMcc6A=="],
 
-    "tapable": ["tapable@2.3.2", "", {}, "sha512-1MOpMXuhGzGL5TTCZFItxCc0AARf1EZFQkGqMm7ERKj8+Hgr5oLvJOVFcC+lRmR8hCe2S3jC4T5D7Vg/d7/fhA=="],
-
-    "tinyglobby": ["tinyglobby@0.2.16", "", { "dependencies": { "fdir": "^6.5.0", "picomatch": "^4.0.4" } }, "sha512-pn99VhoACYR8nFHhxqix+uvsbXineAasWm5ojXoN8xEwK5Kd3/TrhNn1wByuD52UxWRLy8pu+kRMniEi6Eq9Zg=="],
-
-    "ts-api-utils": ["ts-api-utils@2.5.0", "", { "peerDependencies": { "typescript": ">=4.8.4" } }, "sha512-OJ/ibxhPlqrMM0UiNHJ/0CKQkoKF243/AEmplt3qpRgkW8VG7IfOS41h7V8TjITqdByHzrjcS/2si+y4lIh8NA=="],
-
-    "type-check": ["type-check@0.4.0", "", { "dependencies": { "prelude-ls": "^1.2.1" } }, "sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew=="],
+    "tinypool": ["tinypool@2.1.0", "", {}, "sha512-Pugqs6M0m7Lv1I7FtxN4aoyToKg1C4tu+/381vH35y8oENM/Ai7f7C4StcoK4/+BSw9ebcS8jRiVrORFKCALLw=="],
 
     "typescript": ["typescript@6.0.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw=="],
 
-    "uri-js": ["uri-js@4.4.1", "", { "dependencies": { "punycode": "^2.1.0" } }, "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg=="],
+    "undici-types": ["undici-types@7.16.0", "", {}, "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw=="],
 
-    "which": ["which@2.0.2", "", { "dependencies": { "isexe": "^2.0.0" }, "bin": { "node-which": "./bin/node-which" } }, "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA=="],
+    "@tailwindcss/oxide-wasm32-wasi/@emnapi/core": ["@emnapi/core@1.10.0", "", { "dependencies": { "@emnapi/wasi-threads": "1.2.1", "tslib": "^2.4.0" }, "bundled": true }, "sha512-yq6OkJ4p82CAfPl0u9mQebQHKPJkY7WrIuk205cTYnYe+k2Z8YBh11FrbRG/H6ihirqcacOgl2BIO8oyMQLeXw=="],
 
-    "word-wrap": ["word-wrap@1.2.5", "", {}, "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA=="],
-
-    "yocto-queue": ["yocto-queue@0.1.0", "", {}, "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="],
-
-    "@eslint-community/eslint-utils/eslint-visitor-keys": ["eslint-visitor-keys@3.4.3", "", {}, "sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag=="],
-
-    "@tailwindcss/node/jiti": ["jiti@2.6.1", "", { "bin": { "jiti": "lib/jiti-cli.mjs" } }, "sha512-ekilCSN1jwRvIbgeg/57YFh8qQDNbwDb9xT/qu2DAHbFFZUicIl4ygVaAvzveMhMVr3LnpSKTNnwt8PoOfmKhQ=="],
-
-    "@tailwindcss/oxide-wasm32-wasi/@emnapi/core": ["@emnapi/core@1.9.2", "", { "dependencies": { "@emnapi/wasi-threads": "1.2.1", "tslib": "^2.4.0" }, "bundled": true }, "sha512-UC+ZhH3XtczQYfOlu3lNEkdW/p4dsJ1r/bP7H8+rhao3TTTMO1ATq/4DdIi23XuGoFY+Cz0JmCbdVl0hz9jZcA=="],
-
-    "@tailwindcss/oxide-wasm32-wasi/@emnapi/runtime": ["@emnapi/runtime@1.9.2", "", { "dependencies": { "tslib": "^2.4.0" }, "bundled": true }, "sha512-3U4+MIWHImeyu1wnmVygh5WlgfYDtyf0k8AbLhMFxOipihf6nrWC4syIm/SwEeec0mNSafiiNnMJwbza/Is6Lw=="],
+    "@tailwindcss/oxide-wasm32-wasi/@emnapi/runtime": ["@emnapi/runtime@1.10.0", "", { "dependencies": { "tslib": "^2.4.0" }, "bundled": true }, "sha512-ewvYlk86xUoGI0zQRNq/mC+16R1QeDlKQy21Ki3oSYXNgLb45GV1P6A0M+/s6nyCuNDqe5VpaY84BzXGwVbwFA=="],
 
     "@tailwindcss/oxide-wasm32-wasi/@emnapi/wasi-threads": ["@emnapi/wasi-threads@1.2.1", "", { "dependencies": { "tslib": "^2.4.0" }, "bundled": true }, "sha512-uTII7OYF+/Mes/MrcIOYp5yOtSMLBWSIoLPpcgwipoiKbli6k322tcoFsxoIIxPDqW01SQGAgko4EzZi2BNv2w=="],
 
-    "@tailwindcss/oxide-wasm32-wasi/@napi-rs/wasm-runtime": ["@napi-rs/wasm-runtime@1.1.3", "", { "dependencies": { "@tybys/wasm-util": "^0.10.1" }, "peerDependencies": { "@emnapi/core": "^1.7.1", "@emnapi/runtime": "^1.7.1" }, "bundled": true }, "sha512-xK9sGVbJWYb08+mTJt3/YV24WxvxpXcXtP6B172paPZ+Ts69Re9dAr7lKwJoeIx8OoeuimEiRZ7umkiUVClmmQ=="],
+    "@tailwindcss/oxide-wasm32-wasi/@napi-rs/wasm-runtime": ["@napi-rs/wasm-runtime@1.1.4", "", { "dependencies": { "@tybys/wasm-util": "^0.10.1" }, "peerDependencies": { "@emnapi/core": "^1.7.1", "@emnapi/runtime": "^1.7.1" }, "bundled": true }, "sha512-3NQNNgA1YSlJb/kMH1ildASP9HW7/7kYnRI2szWJaofaS1hWmbGI4H+d3+22aGzXXN9IJ+n+GiFVcGipJP18ow=="],
 
     "@tailwindcss/oxide-wasm32-wasi/@tybys/wasm-util": ["@tybys/wasm-util@0.10.1", "", { "dependencies": { "tslib": "^2.4.0" }, "bundled": true }, "sha512-9tTaPJLSiejZKx+Bmog4uSubteqTvFrVrURwkmHixBo0G4seD0zUxp98E1DzUBJxLQ3NPwXrGKDiVjwx/DpPsg=="],
 
     "@tailwindcss/oxide-wasm32-wasi/tslib": ["tslib@2.8.1", "", { "bundled": true }, "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w=="],
-
-    "eslint/ignore": ["ignore@5.3.2", "", {}, "sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g=="],
   }
 }

cmd/README.md

@@ -1,8 +1,14 @@
 # cmd
 
-Executables live here.
+Application entrypoints.
 
-| binary       | purpose           |
-| ------------ | ----------------- |
-| `cmd/server` | web server        |
-| `cmd/user`   | user creation CLI |
+| binary       | purpose                          |
+| ------------ | -------------------------------- |
+| `cmd/server` | HTTP server and worker processes |
+| `cmd/user`   | User management CLI              |
+
+## Conventions
+
+- Each subdirectory is a `package main` that compiles to a standalone binary.
+- Shared logic lives in `internal/` or `pkg/`, not in `cmd/`.
+- Configuration is read from environment variables — see each binary's `main.go` for the full list.

cmd/server/main.go

@@ -1,3 +1,4 @@
+// Package main runs the MAL web server.
 package main
 
 import (

cmd/user/main.go

@@ -1,87 +1,194 @@
+// Package main provides small CLI utilities for local admin tasks.
 package main
 
 import (
 	"bufio"
 	"database/sql"
+	"errors"
 	"fmt"
-	"log"
 	"os"
 	"strings"
 
 	"github.com/google/uuid"
 	"golang.org/x/crypto/bcrypt"
+	"mal/internal"
+	"mal/internal/config"
+	"mal/internal/database"
 	"mal/internal/db"
+	"mal/internal/observability"
 )
 
 func main() {
-	dbConn, err := db.Open(db.GetDBFile())
+	cfg, err := config.Load()
 	if err != nil {
-		log.Fatalf("failed to open db: %v", err)
+		observability.Error("cli_config_load_failed", "cmd/user", "", nil, err)
+		os.Exit(1)
+	}
+
+	dbConn, err := db.Open(cfg.DatabaseFile)
+	if err != nil {
+		observability.Error("cli_db_open_failed", "cmd/user", "", map[string]any{"db_file": cfg.DatabaseFile}, err)
+		os.Exit(1)
 	}
 	defer func() { _ = dbConn.Close() }()
 
-	if len(os.Args) == 2 && os.Args[1] == "update-avatar" {
+	os.Exit(run(dbConn, os.Args))
+}
+
+func run(dbConn *sql.DB, args []string) int {
+	cmd, err := parseArgs(args)
+	if err != nil {
+		observability.Warn("cli_usage", "cmd/user", "invalid arguments", map[string]any{"argc": len(args)}, err)
+		_, _ = fmt.Fprintln(os.Stderr, usage())
+		return 2
+	}
+
+	switch cmd.kind {
+	case commandUpdateAvatar:
 		updateAvatars(dbConn)
-		return
+		return 0
+	case commandRunFixes:
+		runFixes(dbConn)
+		return 0
+	case commandCreateOrUpdateUser:
+		if err := createOrUpdateUser(dbConn, cmd.username, cmd.password); err != nil {
+			return 1
+		}
+		return 0
+	default:
+		observability.Error("cli_command_unreachable", "cmd/user", "", map[string]any{"kind": cmd.kind}, errors.New("unhandled command"))
+		return 1
+	}
+}
+
+type commandKind string
+
+const (
+	commandUpdateAvatar       commandKind = "update-avatar"
+	commandRunFixes           commandKind = "run-fixes"
+	commandCreateOrUpdateUser commandKind = "create-or-update-user"
+)
+
+type command struct {
+	kind     commandKind
+	username string
+	password string
+}
+
+func parseArgs(args []string) (command, error) {
+	if len(args) == 2 {
+		switch args[1] {
+		case string(commandUpdateAvatar):
+			return command{kind: commandUpdateAvatar}, nil
+		case string(commandRunFixes):
+			return command{kind: commandRunFixes}, nil
+		}
 	}
 
-	if len(os.Args) != 3 {
-		log.Fatalf("Usage: go run cmd/user/main.go <username> <password>\n       go run cmd/user/main.go update-avatar")
+	if len(args) == 3 {
+		return command{
+			kind:     commandCreateOrUpdateUser,
+			username: args[1],
+			password: args[2],
+		}, nil
 	}
 
-	username := os.Args[1]
-	password := os.Args[2]
+	return command{}, errors.New("invalid arguments")
+}
 
-	var existingID string
-	err = dbConn.QueryRow("SELECT id FROM user WHERE username = ?", username).Scan(&existingID)
-	if err != nil && err != sql.ErrNoRows {
-		log.Fatalf("database error: %v", err)
+func usage() string {
+	return "Usage: go run cmd/user/main.go <username> <password>\n       go run cmd/user/main.go update-avatar\n       go run cmd/user/main.go run-fixes"
+}
+
+func createOrUpdateUser(dbConn *sql.DB, username string, password string) error {
+	existingID, err := lookupUserID(dbConn, username)
+	if err != nil {
+		observability.Error("cli_user_lookup_failed", "cmd/user", "", map[string]any{"username": username}, err)
+		return err
 	}
 
-	if err == nil {
-		fmt.Printf("User '%s' already exists. Do you want to overwrite their password? [y/N]: ", username)
-		reader := bufio.NewReader(os.Stdin)
-		response, _ := reader.ReadString('\n')
-		response = strings.TrimSpace(strings.ToLower(response))
-
-		if response != "y" && response != "yes" {
+	if existingID != "" {
+		if !promptConfirmOverwrite(username) {
 			fmt.Println("Operation cancelled.")
-			return
+			return nil
 		}
-
-		hash, err := bcrypt.GenerateFromPassword([]byte(password), 12)
-		if err != nil {
-			log.Fatalf("failed to hash password: %v", err)
+		if err := updateUserPassword(dbConn, existingID, username, password); err != nil {
+			return err
 		}
-
-		_, err = dbConn.Exec("UPDATE user SET password_hash = ? WHERE id = ?", string(hash), existingID)
-		if err != nil {
-			log.Fatalf("failed to update user: %v", err)
-		}
-
 		fmt.Printf("Password for '%s' updated successfully!\n", username)
-		return
+		return nil
 	}
 
+	if err := createUser(dbConn, username, password); err != nil {
+		return err
+	}
+	fmt.Printf("User '%s' was created successfully!\n", username)
+	return nil
+}
+
+func lookupUserID(dbConn *sql.DB, username string) (string, error) {
+	var id string
+	err := dbConn.QueryRow("SELECT id FROM user WHERE username = ?", username).Scan(&id)
+	if err == nil {
+		return id, nil
+	}
+	if errors.Is(err, sql.ErrNoRows) {
+		return "", nil
+	}
+	return "", err
+}
+
+func promptConfirmOverwrite(username string) bool {
+	fmt.Printf("User '%s' already exists. Do you want to overwrite their password? [y/N]: ", username)
+	reader := bufio.NewReader(os.Stdin)
+	response, _ := reader.ReadString('\n')
+	response = strings.TrimSpace(strings.ToLower(response))
+	return response == "y" || response == "yes"
+}
+
+func updateUserPassword(dbConn *sql.DB, userID string, username string, password string) error {
 	hash, err := bcrypt.GenerateFromPassword([]byte(password), 12)
 	if err != nil {
-		log.Fatalf("failed to hash password: %v", err)
+		observability.Error("cli_password_hash_failed", "cmd/user", "", nil, err)
+		return err
+	}
+
+	_, err = dbConn.Exec("UPDATE user SET password_hash = ? WHERE id = ?", string(hash), userID)
+	if err != nil {
+		observability.Error("cli_user_password_update_failed", "cmd/user", "", map[string]any{"username": username}, err)
+		return err
+	}
+	return nil
+}
+
+func createUser(dbConn *sql.DB, username string, password string) error {
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), 12)
+	if err != nil {
+		observability.Error("cli_password_hash_failed", "cmd/user", "", nil, err)
+		return err
 	}
 
 	id := uuid.New().String()
-	avatarURL := fmt.Sprintf("https://api.dicebear.com/9.x/dylan/svg?seed=%s", username)
-	_, err = dbConn.Exec("INSERT INTO user (id, username, password_hash, avatar_url) VALUES (?, ?, ?, ?)", id, username, string(hash), avatarURL)
+	avatarURL := internal.DefaultAvatarURL(username)
+	_, err = dbConn.Exec(
+		"INSERT INTO user (id, username, password_hash, avatar_url) VALUES (?, ?, ?, ?)",
+		id,
+		username,
+		string(hash),
+		avatarURL,
+	)
 	if err != nil {
-		log.Fatalf("failed to create user: %v", err)
+		observability.Error("cli_user_create_failed", "cmd/user", "", map[string]any{"username": username}, err)
+		return err
 	}
-
-	fmt.Printf("User '%s' was created successfully!\n", username)
+	return nil
 }
 
 func updateAvatars(dbConn *sql.DB) {
 	rows, err := dbConn.Query("SELECT id, username FROM user")
 	if err != nil {
-		log.Fatalf("failed to fetch users: %v", err)
+		observability.Error("cli_users_list_failed", "cmd/user", "", nil, err)
+		os.Exit(1)
 	}
 	defer func() { _ = rows.Close() }()
 
@@ -89,20 +196,55 @@ func updateAvatars(dbConn *sql.DB) {
 	for rows.Next() {
 		var id, username string
 		if err := rows.Scan(&id, &username); err != nil {
-			log.Fatalf("failed to scan user: %v", err)
+			observability.Error("cli_user_scan_failed", "cmd/user", "", nil, err)
+			os.Exit(1)
 		}
 
-		avatarURL := fmt.Sprintf("https://api.dicebear.com/9.x/dylan/svg?seed=%s", username)
+		avatarURL := internal.DefaultAvatarURL(username)
 		_, err := dbConn.Exec("UPDATE user SET avatar_url = ? WHERE id = ?", avatarURL, id)
 		if err != nil {
-			log.Fatalf("failed to update avatar for %s: %v", username, err)
+			observability.Error("cli_user_avatar_update_failed", "cmd/user", "", map[string]any{"username": username}, err)
+			os.Exit(1)
 		}
 		count++
 	}
 
 	if err := rows.Err(); err != nil {
-		log.Fatalf("iteration error: %v", err)
+		observability.Error("cli_users_iter_failed", "cmd/user", "", nil, err)
+		os.Exit(1)
 	}
 
 	fmt.Printf("Updated avatars for %d user(s)\n", count)
 }
+
+func runFixes(dbConn *sql.DB) {
+	if err := database.RunMigrationsAndFixes(dbConn); err != nil {
+		observability.Error("cli_run_migrations_and_fixes_failed", "cmd/user", "", nil, err)
+		os.Exit(1)
+	}
+
+	rows, err := dbConn.Query("SELECT id, applied_at FROM data_fixes ORDER BY id ASC")
+	if err != nil {
+		observability.Error("cli_data_fixes_list_failed", "cmd/user", "", nil, err)
+		os.Exit(1)
+	}
+	defer func() { _ = rows.Close() }()
+
+	count := 0
+	for rows.Next() {
+		var id string
+		var appliedAt string
+		if err := rows.Scan(&id, &appliedAt); err != nil {
+			observability.Error("cli_data_fix_scan_failed", "cmd/user", "", nil, err)
+			os.Exit(1)
+		}
+		fmt.Printf("%s applied_at=%s\n", id, appliedAt)
+		count++
+	}
+	if err := rows.Err(); err != nil {
+		observability.Error("cli_data_fixes_iter_failed", "cmd/user", "", nil, err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Applied fixes: %d\n", count)
+}

deploy/overlays/production/kustomization.yaml

@@ -17,4 +17,4 @@ namespace: mal
 images:
 - name: main
   newName: reg.milasholsting.dk/apps/mal
-  newTag: latest
+  newTag: sha-6f3ca3e

entrypoint.sh

@@ -9,3 +9,4 @@ if [ ! -x /app/main_server ]; then
 fi
 
 exec /app/main_server
+

eslint.config.ts

@@ -1,29 +0,0 @@
-import tseslint from '@typescript-eslint/eslint-plugin';
-import tsParser from '@typescript-eslint/parser';
-import prettier from 'eslint-plugin-prettier';
-import eslintConfigPrettier from 'eslint-config-prettier';
-
-export default [
-  {
-    ignores: ['dist/**', 'node_modules/**', 'server', '*.js'],
-  },
-  {
-    files: ['**/*.ts'],
-    plugins: {
-      '@typescript-eslint': tseslint,
-      prettier,
-    },
-    languageOptions: {
-      parser: tsParser,
-    },
-    rules: {
-      ...eslintConfigPrettier.rules,
-      '@typescript-eslint/no-explicit-any': 'off',
-      '@typescript-eslint/no-unused-vars': [
-        'warn',
-        { argsIgnorePattern: '^_', varsIgnorePattern: '^_', caughtErrorsIgnorePattern: '^_' },
-      ],
-      'prettier/prettier': 'error',
-    },
-  },
-];

extensions/mal-firefox/README.md

@@ -1,12 +0,0 @@
-# MAL Firefox Extension (dev)
-
-## Load in Firefox
-
-1. Open `about:debugging#/runtime/this-firefox`
-2. Click **Load Temporary Add-on…**
-3. Select `extensions/mal-firefox/manifest.json`
-
-## Usage
-
-- Click the toolbar icon to open the popup and log in.
-- After login, select text on any page → right click → **MyAnimeList** → **Add to Watchlist** → pick a status.

extensions/mal-firefox/background.js

@@ -1,103 +0,0 @@
-const MENU_ROOT_ID = 'mal-root';
-const MENU_WATCHLIST_ID = 'mal-watchlist';
-const MENU_STATUS_PREFIX = 'mal-status:';
-const STATUSES = [
-  { value: 'watching', label: 'Watching' },
-  { value: 'completed', label: 'Completed' },
-  { value: 'on_hold', label: 'On Hold' },
-  { value: 'dropped', label: 'Dropped' },
-  { value: 'plan_to_watch', label: 'Plan to Watch' },
-];
-
-async function getSettings() {
-  const { authToken, apiBaseUrl } = await browser.storage.local.get(['authToken', 'apiBaseUrl']);
-  return {
-    authToken: authToken || '',
-    apiBaseUrl: apiBaseUrl || 'https://mal.mkelvers.tech',
-  };
-}
-
-async function apiFetch(path, init = {}) {
-  const { authToken, apiBaseUrl } = await getSettings();
-  const url = apiBaseUrl.replace(/\/+$/, '') + path;
-  const headers = new Headers(init.headers || {});
-  if (authToken) headers.set('Authorization', `Bearer ${authToken}`);
-  const res = await fetch(url, { ...init, headers });
-  if (!res.ok) {
-    const msg = await res.text().catch(() => '');
-    throw new Error(msg || `HTTP ${res.status}`);
-  }
-  return res;
-}
-
-async function ensureContextMenu() {
-  const { authToken } = await getSettings();
-  await browser.contextMenus.removeAll();
-  if (!authToken) return;
-
-  browser.contextMenus.create({
-    id: MENU_ROOT_ID,
-    title: 'MyAnimeList',
-    contexts: ['selection'],
-  });
-
-  browser.contextMenus.create({
-    id: MENU_WATCHLIST_ID,
-    parentId: MENU_ROOT_ID,
-    title: 'Add to Watchlist',
-    contexts: ['selection'],
-  });
-
-  for (const s of STATUSES) {
-    browser.contextMenus.create({
-      id: MENU_STATUS_PREFIX + s.value,
-      parentId: MENU_WATCHLIST_ID,
-      title: s.label,
-      contexts: ['selection'],
-    });
-  }
-}
-
-browser.runtime.onInstalled.addListener(() => {
-  ensureContextMenu();
-});
-
-browser.runtime.onStartup.addListener(() => {
-  ensureContextMenu();
-});
-
-browser.storage.onChanged.addListener((changes, area) => {
-  if (area !== 'local') return;
-  if (changes.authToken) ensureContextMenu();
-});
-
-browser.contextMenus.onClicked.addListener(async info => {
-  if (typeof info.menuItemId !== 'string') return;
-  if (!info.menuItemId.startsWith(MENU_STATUS_PREFIX)) return;
-
-  const status = info.menuItemId.slice(MENU_STATUS_PREFIX.length);
-  const text = (info.selectionText || '').trim().replace(/\s+/g, ' ').slice(0, 120);
-  if (!text) return;
-
-  try {
-    const searchRes = await apiFetch(`/api/search-quick?q=${encodeURIComponent(text)}`);
-    const items = await searchRes.json();
-    const top = items && items[0];
-    if (!top || !top.id) {
-      await browser.notifications?.create?.({
-        type: 'basic',
-        title: 'MyAnimeList',
-        message: `No matches for: ${text}`,
-      });
-      return;
-    }
-
-    await apiFetch('/api/watchlist', {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ animeId: top.id, status }),
-    });
-  } catch {
-    // Silent failure by default; can be extended with notifications later.
-  }
-});

extensions/mal-firefox/icon.svg

@@ -1,23 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" width="100" height="100">
-  <defs>
-    <radialGradient id="bg" cx="35%" cy="35%" r="75%">
-      <stop offset="0%" style="stop-color: var(--accent, #0466c8)" />
-      <stop offset="100%" style="stop-color: var(--accent-dark, #1d4ed8)" />
-    </radialGradient>
-    <clipPath id="clip">
-      <circle cx="50" cy="50" r="45" />
-    </clipPath>
-  </defs>
-
-  <!-- Base -->
-  <circle cx="50" cy="50" r="45" fill="url(#bg)" />
-
-  <!-- Crescent moon cutout -->
-  <g clip-path="url(#clip)">
-    <path
-      d="M70 50a25 25 0 1 1 -25 -25 20 20 0 1 0 25 25z"
-      fill="#FFF7ED"
-      transform="translate(-2 -2)"
-    />
-  </g>
-</svg>

extensions/mal-firefox/manifest.json

@@ -1,18 +0,0 @@
-{
-  "manifest_version": 3,
-  "name": "MyAnimeList",
-  "version": "0.1.0",
-  "description": "Right-click selected anime titles and add them to your watchlist.",
-  "permissions": ["contextMenus", "storage"],
-  "host_permissions": ["<all_urls>"],
-  "background": {
-    "scripts": ["background.js"]
-  },
-  "action": {
-    "default_title": "MAL Watchlist",
-    "default_popup": "popup.html"
-  },
-  "icons": {
-    "48": "icon.svg"
-  }
-}

extensions/mal-firefox/popup.css

@@ -1,229 +0,0 @@
-:root {
-  color-scheme: light dark;
-  --bg: #0b0f1a;
-  --card: rgba(255, 255, 255, 0.06);
-  --border: rgba(255, 255, 255, 0.12);
-  --text: rgba(255, 255, 255, 0.92);
-  --muted: rgba(255, 255, 255, 0.65);
-  --accent: #6ea8fe;
-  --danger: #ff6b6b;
-  --ok: #4ade80;
-}
-
-@media (prefers-color-scheme: light) {
-  :root {
-    --bg: #f6f7fb;
-    --card: rgba(0, 0, 0, 0.03);
-    --border: rgba(0, 0, 0, 0.1);
-    --text: rgba(0, 0, 0, 0.88);
-    --muted: rgba(0, 0, 0, 0.6);
-    --accent: #1f6feb;
-    --danger: #b42318;
-  }
-}
-
-html,
-body {
-  margin: 0;
-  padding: 0;
-  background: var(--bg);
-  color: var(--text);
-  font:
-    14px/1.4 system-ui,
-    -apple-system,
-    Segoe UI,
-    Roboto,
-    sans-serif;
-}
-
-body {
-  width: 380px;
-  min-width: 380px;
-}
-
-#app {
-  padding: 10px;
-}
-
-.panel {
-  background: transparent;
-  border-radius: 0;
-  padding: 12px;
-  display: grid;
-  gap: 10px;
-}
-
-.brand {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.brandIcon {
-  width: 28px;
-  height: 28px;
-  border-radius: 8px;
-}
-
-.title {
-  font-weight: 650;
-  letter-spacing: 0.2px;
-}
-
-.header {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-}
-
-.link {
-  background: transparent;
-  color: var(--accent);
-  border: 0;
-  padding: 6px 0;
-  cursor: pointer;
-}
-
-.divider {
-  height: 1px;
-  background: transparent;
-  opacity: 0.9;
-}
-
-.subtitle {
-  font-weight: 600;
-  color: var(--muted);
-}
-
-.label {
-  display: grid;
-  gap: 4px;
-  color: var(--muted);
-}
-
-.input {
-  width: 100%;
-  box-sizing: border-box;
-  padding: 9px 10px;
-  border-radius: 0;
-  border: 1px solid var(--border);
-  background: rgba(0, 0, 0, 0.15);
-  color: var(--text);
-  outline: none;
-}
-
-.input:focus {
-  border: 1px solid var(--border);
-  outline: none;
-}
-
-.btn {
-  width: 100%;
-  padding: 10px 12px;
-  border-radius: 0;
-  border: 0;
-  background: rgba(110, 168, 254, 0.18);
-  color: var(--text);
-  cursor: pointer;
-}
-
-.btn.danger {
-  background: rgba(255, 107, 107, 0.18);
-}
-
-.error {
-  color: var(--danger);
-}
-
-.body {
-  color: var(--muted);
-}
-
-.login {
-  display: grid;
-  gap: 8px;
-}
-
-.statusRow {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  color: var(--muted);
-}
-
-.statusDot {
-  width: 8px;
-  height: 8px;
-  border-radius: 999px;
-  background: var(--ok);
-}
-
-.statusText {
-  font-size: 12px;
-}
-
-[hidden] {
-  display: none !important;
-}
-
-.list {
-  display: grid;
-  gap: 8px;
-}
-
-.item {
-  display: grid;
-  grid-template-columns: 44px 1fr;
-  gap: 10px;
-  align-items: center;
-  padding: 8px;
-  border-radius: 10px;
-  border: 0;
-}
-
-.thumb {
-  width: 44px;
-  height: 62px;
-  border-radius: 8px;
-  object-fit: cover;
-  background: rgba(255, 255, 255, 0.08);
-}
-
-.meta {
-  display: grid;
-  gap: 4px;
-}
-
-.metaTitle {
-  font-weight: 650;
-}
-
-.metaSub {
-  color: var(--muted);
-  font-size: 12px;
-}
-
-.row {
-  display: flex;
-  gap: 8px;
-  align-items: center;
-  flex-wrap: wrap;
-}
-
-.select {
-  padding: 8px 10px;
-  border-radius: 10px;
-  border: 0;
-  background: rgba(0, 0, 0, 0.15);
-  color: var(--text);
-  flex: 1;
-}
-
-.mini {
-  padding: 8px 10px;
-  border-radius: 10px;
-  border: 0;
-  background: rgba(110, 168, 254, 0.18);
-  color: var(--text);
-  cursor: pointer;
-}

extensions/mal-firefox/popup.html

@@ -1,51 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <title>MAL Watchlist</title>
-    <link rel="stylesheet" href="popup.css" />
-  </head>
-  <body>
-    <div id="app">
-      <section class="panel">
-        <header class="header">
-          <div class="brand">
-            <img class="brandIcon" src="icon.svg" alt="" />
-            <div class="title">MyAnimeList</div>
-          </div>
-          <button id="logoutBtn" class="link" hidden>Log out</button>
-        </header>
-
-        <div class="divider"></div>
-
-        <div class="body">
-          Select an anime title on any page, then right click to open the context menu. Under
-          “MyAnimeList”, choose “Add to Watchlist” and pick a status to save it to your watchlist.
-        </div>
-
-        <div class="divider"></div>
-
-        <div id="loggedIn" class="statusRow" hidden>
-          <div class="statusDot"></div>
-          <div class="statusText">Signed in — context menu enabled</div>
-        </div>
-
-        <div id="login" class="login" hidden>
-          <label class="label">
-            Username
-            <input id="username" class="input" autocomplete="username" />
-          </label>
-          <label class="label">
-            Password
-            <input id="password" class="input" type="password" autocomplete="current-password" />
-          </label>
-          <button id="loginBtn" class="btn">Log in</button>
-          <div id="loginErr" class="error" hidden></div>
-        </div>
-      </section>
-    </div>
-
-    <script src="popup.js"></script>
-  </body>
-</html>

extensions/mal-firefox/popup.js

@@ -1,74 +0,0 @@
-function qs(id) {
-  return document.getElementById(id);
-}
-
-async function getSettings() {
-  const { authToken, apiBaseUrl } = await browser.storage.local.get(['authToken', 'apiBaseUrl']);
-  return {
-    authToken: authToken || '',
-    apiBaseUrl: apiBaseUrl || 'https://mal.mkelvers.tech',
-  };
-}
-
-async function setSettings(patch) {
-  await browser.storage.local.set(patch);
-}
-
-function show(el, on) {
-  el.hidden = !on;
-}
-
-async function render() {
-  const settings = await getSettings();
-  document.body.dataset.state = settings.authToken ? 'in' : 'out';
-
-  const logoutBtn = qs('logoutBtn');
-  logoutBtn.addEventListener('click', async () => {
-    await setSettings({ authToken: '' });
-    await render();
-  });
-
-  const hasToken = !!settings.authToken;
-  show(logoutBtn, hasToken);
-  show(qs('login'), !hasToken);
-  show(qs('loggedIn'), hasToken);
-
-  if (!hasToken) {
-    setupLogin();
-    return;
-  }
-}
-
-function setupLogin() {
-  const loginErr = qs('loginErr');
-  show(loginErr, false);
-
-  qs('loginBtn').onclick = async () => {
-    show(loginErr, false);
-    const username = qs('username').value.trim();
-    const password = qs('password').value;
-    if (!username || !password) {
-      loginErr.textContent = 'Missing username or password';
-      show(loginErr, true);
-      return;
-    }
-
-    try {
-      const { apiBaseUrl } = await getSettings();
-      const res = await fetch(apiBaseUrl.replace(/\/+$/, '') + '/api/auth/login', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ username, password, name: 'Firefox extension' }),
-      });
-      if (!res.ok) throw new Error('Invalid username or password');
-      const data = await res.json();
-      await setSettings({ authToken: data.token });
-      await render();
-    } catch (e) {
-      loginErr.textContent = e.message || 'Login failed';
-      show(loginErr, true);
-    }
-  };
-}
-
-render();

integrations/animeschedule/animeschedule.go

@@ -0,0 +1,489 @@
+// Package animeschedule provides an integration with the animeschedule.net API.
+package animeschedule
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	netutil "mal/pkg/net"
+	"net/http"
+	"net/url"
+	"os"
+	"regexp"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+type AirType string
+
+const (
+	AirTypeJPN AirType = "JPN"
+	AirTypeSUB AirType = "SUB"
+	AirTypeDUB AirType = "DUB"
+)
+
+type Entry struct {
+	Title       string
+	AnimeURL    string
+	ImageURL    string
+	EpisodeText string
+	AirType     AirType
+	AirsAt      time.Time
+	LocalTime   string
+	DateLabel   string
+	Weekday     time.Weekday
+}
+
+type WeekSchedule struct {
+	Year int
+	Week int
+	Days map[time.Weekday][]Entry
+}
+
+type HTTPStatusError struct {
+	StatusCode  int
+	URL         string
+	ContentType string
+	BodyPreview string
+}
+
+func (e *HTTPStatusError) Error() string {
+	return fmt.Sprintf("unexpected status %d for %s", e.StatusCode, e.URL)
+}
+
+var reWeek = regexp.MustCompile(`(?i)[?&]week=(\d+)`)
+var reYear = regexp.MustCompile(`(?i)[?&]year=(\d+)`)
+
+func scheduleLocation(timezone string) (*time.Location, error) {
+	timezone = strings.TrimSpace(timezone)
+	if timezone == "" {
+		timezone = "UTC"
+	}
+	location, err := time.LoadLocation(timezone)
+	if err != nil {
+		return nil, fmt.Errorf("load schedule timezone %q: %w", timezone, err)
+	}
+	return location, nil
+}
+
+func FetchWeek(ctx context.Context, httpClient *http.Client, year int, week int, timezone string) (WeekSchedule, error) {
+	apiToken := strings.TrimSpace(os.Getenv("ANIMESCHEDULE_API_TOKEN"))
+
+	if apiToken != "" {
+		return fetchWeekAPI(ctx, httpClient, apiToken, year, week, timezone)
+	}
+
+	location, err := scheduleLocation(timezone)
+	if err != nil {
+		return WeekSchedule{}, err
+	}
+
+	u, _ := url.Parse("https://animeschedule.net/")
+	q := u.Query()
+	if year > 0 {
+		q.Set("year", strconv.Itoa(year))
+	}
+	if week > 0 {
+		q.Set("week", strconv.Itoa(week))
+	}
+	u.RawQuery = q.Encode()
+
+	doc, finalURL, err := fetchDocument(ctx, httpClient, u.String())
+	if err != nil {
+		return WeekSchedule{}, err
+	}
+
+	resolvedYear := year
+	resolvedWeek := week
+	if resolvedWeek == 0 {
+		if match := reWeek.FindStringSubmatch(finalURL); len(match) == 2 {
+			if v, err := strconv.Atoi(match[1]); err == nil {
+				resolvedWeek = v
+			}
+		}
+	}
+	if resolvedYear == 0 {
+		if match := reYear.FindStringSubmatch(finalURL); len(match) == 2 {
+			if v, err := strconv.Atoi(match[1]); err == nil {
+				resolvedYear = v
+			}
+		}
+	}
+
+	out := WeekSchedule{
+		Year: resolvedYear,
+		Week: resolvedWeek,
+		Days: map[time.Weekday][]Entry{},
+	}
+
+	doc.Find(".timetable-column").Each(func(_ int, column *goquery.Selection) {
+		h1 := column.Find("h1.timetable-column-date").First()
+		rawHeader := strings.Join(strings.Fields(strings.TrimSpace(h1.Text())), " ")
+		weekday := parseWeekdayFromHeader(rawHeader)
+		if weekday == nil {
+			return
+		}
+
+		dayEntries := make([]Entry, 0, 16)
+
+		column.Find(".timetable-column-show").Each(func(_ int, show *goquery.Selection) {
+			if selectionHasClass(show, "filtered-out") {
+				return
+			}
+
+			a := show.Find("a.show-link").First()
+			title := strings.TrimSpace(a.Find("h2").First().Text())
+			if title == "" {
+				title = strings.TrimSpace(a.Text())
+			}
+			href, _ := a.Attr("href")
+			animeURL := absolutizeURL("https://animeschedule.net", href)
+
+			imageURL := ""
+			if img := a.Find("img").First(); img != nil && img.Length() == 1 {
+				if src, ok := img.Attr("data-src"); ok {
+					imageURL = strings.TrimSpace(src)
+				}
+				if imageURL == "" {
+					if src, ok := img.Attr("src"); ok && !strings.HasPrefix(src, "data:") {
+						imageURL = strings.TrimSpace(src)
+					}
+				}
+			}
+
+			meta := show.Find("h3.time-bar").First()
+			metaText := strings.Join(strings.Fields(strings.TrimSpace(meta.Text())), " ")
+
+			epText, _, airType := parseMeta(metaText)
+			localTime, airsAt, _, _ := parseLocalTime(meta, location)
+			if title == "" || animeURL == "" || localTime == "" || airType != AirTypeSUB {
+				return
+			}
+
+			dayEntries = append(dayEntries, Entry{
+				Title:       title,
+				AnimeURL:    animeURL,
+				ImageURL:    imageURL,
+				EpisodeText: epText,
+				AirType:     airType,
+				AirsAt:      airsAt,
+				LocalTime:   localTime,
+				DateLabel:   rawHeader,
+				Weekday:     *weekday,
+			})
+		})
+
+		if len(dayEntries) == 0 {
+			return
+		}
+
+		out.Days[*weekday] = append(out.Days[*weekday], preferredReleaseEntries(dayEntries)...)
+	})
+
+	return out, nil
+}
+
+func selectionHasClass(selection *goquery.Selection, className string) bool {
+	raw, ok := selection.Attr("class")
+	if !ok {
+		return false
+	}
+	return slices.Contains(strings.Fields(raw), className)
+}
+
+func parseWeekdayFromHeader(header string) *time.Weekday {
+	lower := strings.ToLower(header)
+	candidates := []struct {
+		key string
+		val time.Weekday
+	}{
+		{"monday", time.Monday},
+		{"tuesday", time.Tuesday},
+		{"wednesday", time.Wednesday},
+		{"thursday", time.Thursday},
+		{"friday", time.Friday},
+		{"saturday", time.Saturday},
+		{"sunday", time.Sunday},
+	}
+	for _, c := range candidates {
+		if strings.Contains(lower, c.key) {
+			v := c.val
+			return &v
+		}
+	}
+	return nil
+}
+
+func parseMeta(meta string) (episodeText string, localTime string, airType AirType) {
+	// Example: "Ep 8 04:00 PM SUB"
+	parts := strings.Fields(meta)
+	if len(parts) < 4 {
+		return "", "", ""
+	}
+
+	// Find the time token(s)
+	var timeIdx = -1
+	for i := range parts {
+		if strings.Contains(parts[i], ":") && len(parts[i]) >= 4 {
+			timeIdx = i
+			break
+		}
+	}
+	if timeIdx == -1 || timeIdx+2 >= len(parts) {
+		return "", "", ""
+	}
+
+	localTime = strings.TrimSpace(parts[timeIdx] + " " + parts[timeIdx+1])
+	typeRaw := strings.TrimSpace(parts[timeIdx+2])
+	switch strings.ToUpper(typeRaw) {
+	case "JPN":
+		airType = AirTypeJPN
+	case "SUB":
+		airType = AirTypeSUB
+	case "DUB":
+		airType = AirTypeDUB
+	default:
+		return "", "", ""
+	}
+
+	episodeText = strings.TrimSpace(strings.Join(parts[:timeIdx], " "))
+	return episodeText, localTime, airType
+}
+
+func preferredReleaseEntries(entries []Entry) []Entry {
+	type keyedEntry struct {
+		index int
+		entry Entry
+	}
+
+	selected := map[string]keyedEntry{}
+	for i, entry := range entries {
+		key := entry.AnimeURL + "\x00" + entry.EpisodeText
+		current, ok := selected[key]
+		if !ok || airTypePriority(entry.AirType) > airTypePriority(current.entry.AirType) {
+			selected[key] = keyedEntry{index: i, entry: entry}
+		}
+	}
+
+	out := make([]keyedEntry, 0, len(selected))
+	for _, entry := range selected {
+		out = append(out, entry)
+	}
+	slices.SortFunc(out, func(a keyedEntry, b keyedEntry) int {
+		return a.index - b.index
+	})
+
+	preferred := make([]Entry, 0, len(out))
+	for _, entry := range out {
+		preferred = append(preferred, entry.entry)
+	}
+	return preferred
+}
+
+func airTypePriority(airType AirType) int {
+	switch airType {
+	case AirTypeSUB:
+		return 3
+	case AirTypeDUB:
+		return 2
+	case AirTypeJPN:
+		return 1
+	default:
+		return 0
+	}
+}
+
+func parseLocalTime(meta *goquery.Selection, location *time.Location) (localTime string, airsAt time.Time, rawDatetime string, rawRenderedTime string) {
+	// AnimeSchedule updates rendered time client-side based on the viewer's timezone.
+	// The server-rendered HTML can show a different time string, so we prefer the `datetime`
+	// attribute when available.
+	t := meta.Find("time").First()
+	if t.Length() == 1 {
+		rawRenderedTime = strings.Join(strings.Fields(strings.TrimSpace(t.Text())), " ")
+		if raw, ok := t.Attr("datetime"); ok {
+			rawDatetime = raw
+			if parsed, err := parseScheduleDatetime(rawDatetime); err == nil {
+				airsAt = parsed.In(location)
+				localTime = airsAt.Format("15:04")
+				return localTime, airsAt, rawDatetime, rawRenderedTime
+			}
+		}
+	}
+
+	fallback := strings.Join(strings.Fields(strings.TrimSpace(meta.Text())), " ")
+	_, parsedTime, _ := parseMeta(fallback)
+	return parsedTime, time.Time{}, "", ""
+}
+
+func parseScheduleDatetime(value string) (time.Time, error) {
+	for _, layout := range []string{time.RFC3339, "2006-01-02T15:04Z07:00"} {
+		parsed, err := time.Parse(layout, strings.TrimSpace(value))
+		if err == nil {
+			return parsed, nil
+		}
+	}
+	return time.Time{}, fmt.Errorf("parse schedule datetime %q", value)
+}
+
+func absolutizeURL(base string, href string) string {
+	href = strings.TrimSpace(href)
+	if href == "" {
+		return ""
+	}
+	if strings.HasPrefix(href, "http://") || strings.HasPrefix(href, "https://") {
+		return href
+	}
+	return strings.TrimRight(base, "/") + "/" + strings.TrimLeft(href, "/")
+}
+
+func addCommonHeaders(request *http.Request) {
+	netutil.SetBrowserHTMLHeaders(request, "https://animeschedule.net/")
+}
+
+func fetchDocument(ctx context.Context, httpClient *http.Client, url string) (*goquery.Document, string, error) {
+	document, response, err := netutil.FetchHTMLDocument(ctx, httpClient, url, addCommonHeaders, func(response *http.Response, body []byte) error {
+		return &HTTPStatusError{
+			StatusCode:  response.StatusCode,
+			URL:         url,
+			ContentType: strings.TrimSpace(response.Header.Get("Content-Type")),
+			BodyPreview: strings.Join(strings.Fields(strings.TrimSpace(string(body))), " "),
+		}
+	})
+	if err != nil {
+		return nil, url, err
+	}
+
+	return document, response.Request.URL.String(), nil
+}
+
+type timetableAnimeAPI struct {
+	Title                   string    `json:"title"`
+	English                 string    `json:"english"`
+	Route                   string    `json:"route"`
+	EpisodeDate             time.Time `json:"episodeDate"`
+	EpisodeNumber           int       `json:"episodeNumber"`
+	SubtractedEpisodeNumber int       `json:"subtractedEpisodeNumber"`
+	AirType                 string    `json:"airType"`
+	ImageVersionRoute       string    `json:"imageVersionRoute"`
+}
+
+func fetchWeekAPI(ctx context.Context, httpClient *http.Client, token string, year int, week int, timezone string) (WeekSchedule, error) {
+	client := httpClient
+	if client == nil {
+		client = http.DefaultClient
+	}
+
+	location, err := scheduleLocation(timezone)
+	if err != nil {
+		return WeekSchedule{}, err
+	}
+
+	u, _ := url.Parse("https://animeschedule.net/api/v3/timetables/sub")
+	q := u.Query()
+	if year > 0 && week > 0 {
+		q.Set("year", strconv.Itoa(year))
+		q.Set("week", strconv.Itoa(week))
+	}
+	q.Set("tz", location.String())
+	u.RawQuery = q.Encode()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
+	if err != nil {
+		return WeekSchedule{}, fmt.Errorf("create api request: %w", err)
+	}
+	req.Header.Set("Authorization", "Bearer "+token)
+	req.Header.Set("Accept", "application/json")
+	req.Header.Set("User-Agent", netutil.Chrome135)
+
+	res, err := client.Do(req)
+	if err != nil {
+		return WeekSchedule{}, fmt.Errorf("api request failed: %w", err)
+	}
+	defer func() { _ = res.Body.Close() }()
+
+	if res.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(io.LimitReader(res.Body, netutil.Bytes512))
+		return WeekSchedule{}, &HTTPStatusError{
+			StatusCode:  res.StatusCode,
+			URL:         u.String(),
+			ContentType: strings.TrimSpace(res.Header.Get("Content-Type")),
+			BodyPreview: strings.Join(strings.Fields(strings.TrimSpace(string(body))), " "),
+		}
+	}
+
+	var payload []timetableAnimeAPI
+	if err := json.NewDecoder(res.Body).Decode(&payload); err != nil {
+		return WeekSchedule{}, fmt.Errorf("decode timetables api: %w", err)
+	}
+
+	resolvedYear := year
+	resolvedWeek := week
+	if resolvedYear == 0 || resolvedWeek == 0 {
+		resolvedYear, resolvedWeek = time.Now().In(time.Local).ISOWeek()
+	}
+
+	out := WeekSchedule{
+		Year: resolvedYear,
+		Week: resolvedWeek,
+		Days: map[time.Weekday][]Entry{},
+	}
+
+	for _, item := range payload {
+		title := strings.TrimSpace(item.English)
+		if title == "" {
+			title = strings.TrimSpace(item.Title)
+		}
+		if title == "" {
+			continue
+		}
+
+		episodeNumber := item.EpisodeNumber
+		subtracted := item.SubtractedEpisodeNumber
+		episodeText := ""
+		switch {
+		case subtracted > 0 && subtracted < episodeNumber:
+			episodeText = fmt.Sprintf("Ep %d-%d", subtracted, episodeNumber)
+		case episodeNumber > 0:
+			episodeText = fmt.Sprintf("Ep %d", episodeNumber)
+		default:
+			episodeText = "Ep ?"
+		}
+
+		airType := AirType(strings.ToUpper(strings.TrimSpace(item.AirType)))
+		if airType != AirTypeSUB {
+			continue
+		}
+
+		episodeTime := item.EpisodeDate.In(location)
+		weekday := episodeTime.Weekday()
+		localTime := episodeTime.Format("15:04")
+
+		imageURL := ""
+		if strings.TrimSpace(item.ImageVersionRoute) != "" {
+			imageURL = "https://img.animeschedule.net/production/assets/public/img/" + strings.TrimLeft(strings.TrimSpace(item.ImageVersionRoute), "/")
+		}
+
+		animeURL := ""
+		if strings.TrimSpace(item.Route) != "" {
+			animeURL = "https://animeschedule.net/anime/" + strings.TrimLeft(strings.TrimSpace(item.Route), "/")
+		}
+
+		out.Days[weekday] = append(out.Days[weekday], Entry{
+			Title:       title,
+			AnimeURL:    animeURL,
+			ImageURL:    imageURL,
+			EpisodeText: episodeText,
+			AirType:     airType,
+			AirsAt:      episodeTime,
+			LocalTime:   localTime,
+			Weekday:     weekday,
+		})
+	}
+
+	return out, nil
+}

integrations/animeschedule/animeschedule_test.go

@@ -0,0 +1,101 @@
+package animeschedule
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+func TestParseLocalTimeUsesRequestedTimezone(t *testing.T) {
+	doc, err := goquery.NewDocumentFromReader(strings.NewReader(`
+		<h3 class="time-bar">
+			<span class="show-episode">Ep 9</span>
+			<time datetime="2026-06-05T16:00+01:00" class="show-air-time">04:00 PM</time>
+			<span>SUB</span>
+		</h3>
+	`))
+	if err != nil {
+		t.Fatalf("parse document: %v", err)
+	}
+
+	location, err := time.LoadLocation("Europe/Copenhagen")
+	if err != nil {
+		t.Fatalf("load location: %v", err)
+	}
+
+	localTime, airsAt, _, rendered := parseLocalTime(doc.Find(".time-bar").First(), location)
+
+	if localTime != "17:00" {
+		t.Fatalf("localTime = %q, want %q", localTime, "17:00")
+	}
+	if rendered != "04:00 PM" {
+		t.Fatalf("rendered = %q, want %q", rendered, "04:00 PM")
+	}
+	if airsAt.Location().String() != "Europe/Copenhagen" {
+		t.Fatalf("airsAt location = %q, want Europe/Copenhagen", airsAt.Location().String())
+	}
+}
+
+func TestParseLocalTimeUsesExactAngelNextDoorSubRelease(t *testing.T) {
+	doc, err := goquery.NewDocumentFromReader(strings.NewReader(`
+		<h3 class="time-bar">
+			<span class="show-episode">Ep 10</span>
+			<time datetime="2026-06-05T15:30+01:00" class="show-air-time">03:30 PM</time>
+			<span>SUB</span>
+		</h3>
+	`))
+	if err != nil {
+		t.Fatalf("parse document: %v", err)
+	}
+
+	location, err := time.LoadLocation("Europe/Copenhagen")
+	if err != nil {
+		t.Fatalf("load location: %v", err)
+	}
+
+	localTime, _, _, _ := parseLocalTime(doc.Find(".time-bar").First(), location)
+
+	if localTime != "16:30" {
+		t.Fatalf("localTime = %q, want %q", localTime, "16:30")
+	}
+}
+
+func TestPreferredReleaseEntriesPrefersSubForSameEpisode(t *testing.T) {
+	entries := []Entry{
+		{
+			Title:       "Tensei shitara Slime Datta Ken 4th Season",
+			AnimeURL:    "https://animeschedule.net/anime/tensei-shitara-slime-datta-ken-4th-season",
+			EpisodeText: "Ep 9",
+			AirType:     AirTypeJPN,
+			LocalTime:   "16:00",
+		},
+		{
+			Title:       "Tensei shitara Slime Datta Ken 4th Season",
+			AnimeURL:    "https://animeschedule.net/anime/tensei-shitara-slime-datta-ken-4th-season",
+			EpisodeText: "Ep 9",
+			AirType:     AirTypeSUB,
+			LocalTime:   "17:00",
+		},
+		{
+			Title:       "Tensei shitara Slime Datta Ken 4th Season",
+			AnimeURL:    "https://animeschedule.net/anime/tensei-shitara-slime-datta-ken-4th-season",
+			EpisodeText: "Ep 6",
+			AirType:     AirTypeDUB,
+			LocalTime:   "17:00",
+		},
+	}
+
+	got := preferredReleaseEntries(entries)
+
+	if len(got) != 2 {
+		t.Fatalf("len(got) = %d, want 2", len(got))
+	}
+	if got[0].AirType != AirTypeSUB {
+		t.Fatalf("first air type = %q, want %q", got[0].AirType, AirTypeSUB)
+	}
+	if got[1].AirType != AirTypeDUB {
+		t.Fatalf("second air type = %q, want %q", got[1].AirType, AirTypeDUB)
+	}
+}

integrations/jikan/anime.go

@@ -32,6 +32,16 @@ func (c *Client) GetAnimeRecommendations(ctx context.Context, id int) ([]Recomme
 	return resp.Data, nil
 }
 
+func (c *Client) WarmAnimeRecommendations(id int) {
+	url := fmt.Sprintf("%s/anime/%d/recommendations", c.baseURL, id)
+	cacheKey := fmt.Sprintf("anime:recommendations:%d", id)
+
+	c.runAsyncRefresh(func(ctx context.Context) {
+		var resp RecommendationsResponse
+		_ = c.getWithCache(ctx, cacheKey, 24*time.Hour, url, &resp)
+	})
+}
+
 // GetAnimeByID returns full anime details; finished series cached 30 days, airing cached 1 day.
 func (c *Client) GetAnimeByID(ctx context.Context, id int) (Anime, error) {
 	cacheKey := fmt.Sprintf("anime:%d", id)
@@ -94,18 +104,7 @@ func (c *Client) refreshAnimeByID(ctx context.Context, id int) (Anime, error) {
 }
 
 func (c *Client) refreshAnimeByIDAsync(id int) {
-	select {
-	case c.refreshSem <- struct{}{}:
-	default:
-		return
-	}
-
-	go func() {
-		defer func() { <-c.refreshSem }()
-
-		ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
-		defer cancel()
-
+	c.runAsyncRefresh(func(ctx context.Context) {
 		_, _ = c.refreshAnimeByID(ctx, id)
-	}()
+	})
 }

integrations/jikan/client.go

@@ -5,21 +5,24 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log"
 	"net"
 	"net/http"
-	"os"
 	"reflect"
 	"strconv"
 	"strings"
 	"sync"
 	"time"
 
+	"mal/internal/config"
 	"mal/internal/db"
+	"mal/internal/observability"
+	netutil "mal/pkg/net"
 
 	"golang.org/x/sync/singleflight"
 )
 
+var traceEnabled bool
+
 type Client struct {
 	httpClient  *http.Client
 	baseURL     string
@@ -29,6 +32,7 @@ type Client struct {
 	lastReqTime time.Time // rate limiting: last request timestamp
 	sf          singleflight.Group
 	refreshSem  chan struct{}
+	metrics     *observability.Metrics
 
 	// Random anime pool for DDoS-proof truly random "Surprise Me"
 	randomPool      []Anime
@@ -38,7 +42,8 @@ type Client struct {
 
 const jikanSlowLogThreshold = 750 * time.Millisecond
 
-func NewClient(queries *db.Queries) *Client {
+func NewClient(cfg config.Config, queries *db.Queries, metrics *observability.Metrics) *Client {
+	traceEnabled = cfg.JikanTrace
 	return &Client{
 		httpClient: &http.Client{
 			Timeout: 10 * time.Second,
@@ -51,6 +56,7 @@ func NewClient(queries *db.Queries) *Client {
 		},
 		baseURL:     "https://api.jikan.moe/v4",
 		db:          queries,
+		metrics:     metrics,
 		retrySignal: make(chan struct{}, 1),
 		refreshSem:  make(chan struct{}, 4),
 		randomPool:  make([]Anime, 0),
@@ -140,8 +146,7 @@ func waitForRetry(ctx context.Context, delay time.Duration) error {
 }
 
 func jikanTraceEnabled() bool {
-	value := strings.ToLower(strings.TrimSpace(os.Getenv("MAL_JIKAN_TRACE")))
-	return value == "1" || value == "true" || value == "yes"
+	return traceEnabled
 }
 
 func logJikanCache(cacheKey string, source string, startedAt time.Time, err error) {
@@ -153,17 +158,25 @@ func logJikanCache(cacheKey string, source string, startedAt time.Time, err erro
 		return
 	}
 
-	errorValue := ""
+	level := observability.LogLevelInfo
 	if err != nil {
-		errorValue = err.Error()
+		level = observability.LogLevelError
+	} else if source != "fresh" && source != "refresh" {
+		// Stale reads are expected sometimes, but worth tracking in logs.
+		level = observability.LogLevelWarn
 	}
 
-	log.Printf(
-		"jikan_cache key=%s source=%s duration_ms=%.2f error=%s",
-		strconv.Quote(cacheKey),
-		source,
-		float64(duration.Microseconds())/1000,
-		strconv.Quote(errorValue),
+	observability.LogJSON(
+		level,
+		"jikan_cache",
+		"jikan",
+		"",
+		map[string]any{
+			"cache_key":   cacheKey,
+			"source":      source,
+			"duration_ms": float64(duration.Microseconds()) / 1000,
+		},
+		err,
 	)
 }
 
@@ -173,18 +186,26 @@ func logJikanUpstream(urlStr string, statusCode int, attempts int, startedAt tim
 		return
 	}
 
-	errorValue := ""
-	if err != nil {
-		errorValue = err.Error()
+	level := observability.LogLevelInfo
+	if err != nil || statusCode >= http.StatusInternalServerError {
+		level = observability.LogLevelError
+	} else if statusCode == http.StatusTooManyRequests || statusCode >= http.StatusBadRequest {
+		level = observability.LogLevelWarn
 	}
 
-	log.Printf(
-		"jikan_upstream url=%s status=%d attempts=%d duration_ms=%.2f error=%s",
-		strconv.Quote(urlStr),
-		statusCode,
-		attempts,
-		float64(duration.Microseconds())/1000,
-		strconv.Quote(errorValue),
+	observability.LogJSON(
+		level,
+		"jikan_upstream",
+		"jikan",
+		"",
+		map[string]any{
+			"url":         urlStr,
+			"endpoint":    metricsEndpoint(urlStr),
+			"status":      statusCode,
+			"attempts":    attempts,
+			"duration_ms": float64(duration.Microseconds()) / 1000,
+		},
+		err,
 	)
 }
 
@@ -262,11 +283,18 @@ func (c *Client) getCache(parentCtx context.Context, key string, out any) bool {
 
 	data, err := c.db.GetJikanCache(ctx, key)
 	if err != nil {
+		c.metrics.ObserveCache("jikan", "miss")
 		return false
 	}
 
 	err = json.Unmarshal([]byte(data), out)
-	return err == nil
+	if err != nil {
+		c.metrics.ObserveCache("jikan", "miss")
+		return false
+	}
+
+	c.metrics.ObserveCache("jikan", "hit")
+	return true
 }
 
 // getStaleCache retrieves expired-but-available cache by key.
@@ -276,11 +304,18 @@ func (c *Client) getStaleCache(parentCtx context.Context, key string, out any) b
 
 	data, err := c.db.GetJikanCacheStale(ctx, key)
 	if err != nil {
+		c.metrics.ObserveCache("jikan_stale", "miss")
 		return false
 	}
 
 	err = json.Unmarshal([]byte(data), out)
-	return err == nil
+	if err != nil {
+		c.metrics.ObserveCache("jikan_stale", "miss")
+		return false
+	}
+
+	c.metrics.ObserveCache("jikan_stale", "hit")
+	return true
 }
 
 // setCache stores data in cache with specified TTL.
@@ -375,6 +410,12 @@ func (c *Client) refreshWithCacheAsync(cacheKey string, ttl time.Duration, url s
 		return
 	}
 
+	c.runAsyncRefresh(func(ctx context.Context) {
+		_ = c.refreshWithCache(ctx, cacheKey, ttl, url, target)
+	})
+}
+
+func (c *Client) runAsyncRefresh(refresh func(context.Context)) {
 	select {
 	case c.refreshSem <- struct{}{}:
 	default:
@@ -387,7 +428,7 @@ func (c *Client) refreshWithCacheAsync(cacheKey string, ttl time.Duration, url s
 		ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
 		defer cancel()
 
-		_ = c.refreshWithCache(ctx, cacheKey, ttl, url, target)
+		refresh(ctx)
 	}()
 }
 
@@ -425,7 +466,9 @@ func (c *Client) fetchWithRetry(ctx context.Context, urlStr string, out any) err
 	maxRetries := 5
 	startedAt := time.Now()
 	attempts := 0
+	endpoint := metricsEndpoint(urlStr)
 	logAndReturn := func(statusCode int, err error) error {
+		c.metrics.ObserveJikanRequest(endpoint, statusCode, time.Since(startedAt), err)
 		logJikanUpstream(urlStr, statusCode, attempts, startedAt, err)
 		return err
 	}
@@ -446,6 +489,7 @@ func (c *Client) fetchWithRetry(ctx context.Context, urlStr string, out any) err
 		if err != nil {
 			return logAndReturn(0, fmt.Errorf("failed to create jikan request: %w", err))
 		}
+		req.Header.Set("User-Agent", netutil.Generic)
 
 		resp, err := c.httpClient.Do(req)
 		if err != nil {
@@ -506,3 +550,36 @@ func (c *Client) fetchWithRetry(ctx context.Context, urlStr string, out any) err
 
 	return logAndReturn(0, fmt.Errorf("max retries exceeded for %s", urlStr))
 }
+
+func metricsEndpoint(urlStr string) string {
+	trimmed := strings.TrimSpace(urlStr)
+	if trimmed == "" {
+		return "unknown"
+	}
+
+	prefix := "https://api.jikan.moe/v4"
+	trimmed = strings.TrimPrefix(trimmed, prefix)
+
+	if idx := strings.Index(trimmed, "?"); idx >= 0 {
+		trimmed = trimmed[:idx]
+	}
+
+	parts := strings.Split(trimmed, "/")
+	out := make([]string, 0, len(parts))
+	for _, part := range parts {
+		if part == "" {
+			continue
+		}
+		if _, err := strconv.Atoi(part); err == nil {
+			out = append(out, "{id}")
+			continue
+		}
+		out = append(out, part)
+	}
+
+	if len(out) == 0 {
+		return "/"
+	}
+
+	return "/" + strings.Join(out, "/")
+}

integrations/jikan/client_test.go

@@ -5,7 +5,9 @@ import (
 	"database/sql"
 	"encoding/json"
 	"io"
+	"mal/internal/config"
 	"mal/internal/db"
+	"mal/internal/observability"
 	"net/http"
 	"strings"
 	"testing"
@@ -41,7 +43,7 @@ func TestGetWithCacheReturnsStaleAndRefreshesAsync(t *testing.T) {
 	}
 
 	queries := db.New(sqlDB)
-	client := NewClient(queries)
+	client := NewClient(config.Config{}, queries, observability.NewMetrics())
 	stale := TopAnimeResponse{Data: []Anime{{MalID: 1, Title: "stale"}}}
 	staleBytes, err := json.Marshal(stale)
 	if err != nil {

integrations/jikan/constants.go

@@ -1,6 +1,8 @@
+// Package jikan provides a client for the Jikan v4 API.
 package jikan
 
 import "time"
 
 const shortCacheTTL = time.Hour     // 1 hour - for frequently changing data
 const longCacheTTL = time.Hour * 24 // 24 hours - for stable data like genres
+const producerCacheTTL = time.Hour * 24 * 30

integrations/jikan/module.go

@@ -1,8 +1,6 @@
 package jikan
 
-import (
-	"go.uber.org/fx"
-)
+import "go.uber.org/fx"
 
 var Module = fx.Options(
 	fx.Provide(NewClient),

integrations/jikan/producers.go

@@ -0,0 +1,138 @@
+package jikan
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+type ProducerListEntry struct {
+	MalID  int `json:"mal_id"`
+	Titles []struct {
+		Type  string `json:"type"`
+		Title string `json:"title"`
+	} `json:"titles"`
+}
+
+type ProducersResponse struct {
+	Data       []ProducerListEntry `json:"data"`
+	Pagination Pagination          `json:"pagination"`
+}
+
+type ProducerListResult struct {
+	Items       []ProducerListEntry
+	HasNextPage bool
+}
+
+func (c *Client) GetProducers(ctx context.Context, query string, page int, limit int) (ProducerListResult, error) {
+	if page < 1 {
+		page = 1
+	}
+	if limit < 1 {
+		limit = 1
+	}
+
+	q := strings.TrimSpace(query)
+	if q == "" {
+		return c.fetchProducersPage(ctx, "", page, limit)
+	}
+
+	result, err := c.fetchProducersPage(ctx, q, page, limit)
+	if err == nil {
+		return result, nil
+	}
+
+	var apiErr *APIError
+	if !errors.As(err, &apiErr) {
+		return ProducerListResult{}, err
+	}
+
+	return c.searchProducersFromPages(ctx, q, page, limit)
+}
+
+func (c *Client) fetchProducersPage(ctx context.Context, query string, page int, limit int) (ProducerListResult, error) {
+	q := strings.TrimSpace(query)
+	cacheKey := fmt.Sprintf("producers:%s:%d:%d", q, page, limit)
+	reqURL := fmt.Sprintf("%s/producers?page=%d&limit=%d", c.baseURL, page, limit)
+	if q != "" {
+		reqURL += "&q=" + url.QueryEscape(q)
+	}
+
+	var result ProducersResponse
+	if err := c.getWithCache(ctx, cacheKey, producerCacheTTL, reqURL, &result); err != nil {
+		return ProducerListResult{}, err
+	}
+
+	return ProducerListResult{
+		Items:       result.Data,
+		HasNextPage: result.Pagination.HasNextPage,
+	}, nil
+}
+
+func (c *Client) searchProducersFromPages(ctx context.Context, query string, page int, limit int) (ProducerListResult, error) {
+	const maxPagesToScan = 25
+
+	needle := strings.ToLower(strings.TrimSpace(query))
+	startIndex := (page - 1) * limit
+	endIndex := startIndex + limit
+
+	matches := make([]ProducerListEntry, 0, endIndex)
+	scannedAll := false
+
+	for currentPage := 1; currentPage <= maxPagesToScan; currentPage++ {
+		result, err := c.fetchProducersPage(ctx, "", currentPage, limit)
+		if err != nil {
+			return ProducerListResult{}, err
+		}
+
+		for _, item := range result.Items {
+			name := strings.ToLower(ProducerListEntryName(item))
+			if strings.Contains(name, needle) {
+				matches = append(matches, item)
+			}
+		}
+
+		if len(matches) >= endIndex {
+			return ProducerListResult{
+				Items:       matches[startIndex:endIndex],
+				HasNextPage: len(matches) > endIndex || result.HasNextPage,
+			}, nil
+		}
+
+		if !result.HasNextPage {
+			scannedAll = true
+			break
+		}
+	}
+
+	if startIndex >= len(matches) {
+		return ProducerListResult{
+			Items:       []ProducerListEntry{},
+			HasNextPage: !scannedAll,
+		}, nil
+	}
+
+	if endIndex > len(matches) {
+		endIndex = len(matches)
+	}
+
+	return ProducerListResult{
+		Items:       matches[startIndex:endIndex],
+		HasNextPage: !scannedAll,
+	}, nil
+}
+
+func ProducerListEntryName(entry ProducerListEntry) string {
+	for _, t := range entry.Titles {
+		if t.Title != "" {
+			return t.Title
+		}
+	}
+	if entry.MalID > 0 {
+		return strconv.Itoa(entry.MalID)
+	}
+	return ""
+}

integrations/jikan/relations.go

@@ -4,11 +4,12 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"log"
 	"sort"
 	"strings"
 	"time"
 
+	"mal/internal/observability"
+
 	"mal/integrations/watchorder"
 
 	"golang.org/x/sync/errgroup"
@@ -42,15 +43,8 @@ func relationCacheKey(id int) string {
 	return fmt.Sprintf("relations:watch-order:%d", id)
 }
 
-// getWatchOrder fetches watch order from chiaki, caches result for 24h.
-func (c *Client) getWatchOrder(ctx context.Context, id int) (watchorder.WatchOrderResult, error) {
+func (c *Client) refreshWatchOrder(ctx context.Context, id int) (watchorder.WatchOrderResult, error) {
 	cacheKey := relationCacheKey(id)
-
-	var cached watchorder.WatchOrderResult
-	if c.getCache(ctx, cacheKey, &cached) {
-		return cached, nil
-	}
-
 	watchOrderURL := fmt.Sprintf(chiakiWatchOrderURL, id)
 	requestCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
@@ -62,21 +56,44 @@ func (c *Client) getWatchOrder(ctx context.Context, id int) (watchorder.WatchOrd
 			return watchorder.WatchOrderResult{}, watchorder.ErrWatchOrderNotFound
 		}
 		if errors.Is(err, watchorder.ErrWatchOrderMarkupNotFound) {
-			log.Printf("relations: watch-order markup missing for %d (%s): %v", id, watchOrderURL, err)
+			observability.Warn(
+				"relations_watch_order_markup_missing",
+				"jikan",
+				"",
+				map[string]any{
+					"anime_id": id,
+					"url":      watchOrderURL,
+				},
+				err,
+			)
 		} else if errors.As(err, &statusError) {
-			log.Printf(
-				"relations: watch-order http error for %d (%s): status=%d server=%q cf_ray=%q location=%q content_type=%q body=%q",
-				id,
-				watchOrderURL,
-				statusError.StatusCode,
-				statusError.Server,
-				statusError.CFRay,
-				statusError.Location,
-				statusError.ContentType,
-				statusError.BodyPreview,
+			observability.Warn(
+				"relations_watch_order_http_error",
+				"jikan",
+				"",
+				map[string]any{
+					"anime_id":     id,
+					"url":          watchOrderURL,
+					"status":       statusError.StatusCode,
+					"server":       statusError.Server,
+					"cf_ray":       statusError.CFRay,
+					"location":     statusError.Location,
+					"content_type": statusError.ContentType,
+					"body_preview": statusError.BodyPreview,
+				},
+				err,
 			)
 		} else {
-			log.Printf("relations: watch-order fetch failed for %d (%s): %v", id, watchOrderURL, err)
+			observability.Warn(
+				"relations_watch_order_fetch_failed",
+				"jikan",
+				"",
+				map[string]any{
+					"anime_id": id,
+					"url":      watchOrderURL,
+				},
+				err,
+			)
 		}
 		return watchorder.WatchOrderResult{}, err
 	}
@@ -85,6 +102,37 @@ func (c *Client) getWatchOrder(ctx context.Context, id int) (watchorder.WatchOrd
 	return result, nil
 }
 
+func (c *Client) refreshWatchOrderAsync(id int) {
+	c.runAsyncRefresh(func(ctx context.Context) {
+		_, _ = c.refreshWatchOrder(ctx, id)
+	})
+}
+
+// getWatchOrder fetches watch order from chiaki, caches result for 24h.
+func (c *Client) getWatchOrder(ctx context.Context, id int) (watchorder.WatchOrderResult, error) {
+	cacheKey := relationCacheKey(id)
+
+	var cached watchorder.WatchOrderResult
+	if c.getCache(ctx, cacheKey, &cached) {
+		return cached, nil
+	}
+
+	if c.getStaleCache(ctx, cacheKey, &cached) {
+		c.refreshWatchOrderAsync(id)
+		return cached, nil
+	}
+
+	result, err := c.refreshWatchOrder(ctx, id)
+	if err != nil {
+		if c.getStaleCache(ctx, cacheKey, &cached) {
+			return cached, nil
+		}
+		return watchorder.WatchOrderResult{}, err
+	}
+
+	return result, nil
+}
+
 // currentOnlyRelation returns just the current anime when watch order lookup fails.
 func (c *Client) currentOnlyRelation(ctx context.Context, id int) ([]RelationEntry, error) {
 	currentAnime, err := c.GetAnimeByID(ctx, id)
@@ -107,7 +155,15 @@ func (c *Client) GetFullRelations(ctx context.Context, id int) ([]RelationEntry,
 		if errors.Is(err, watchorder.ErrWatchOrderNotFound) {
 			return c.currentOnlyRelation(ctx, id)
 		}
-		log.Printf("relations: using current-only fallback for %d: %v", id, err)
+		observability.Warn(
+			"relations_watch_order_fallback_current_only",
+			"jikan",
+			"",
+			map[string]any{
+				"anime_id": id,
+			},
+			err,
+		)
 		return c.currentOnlyRelation(ctx, id)
 	}
 
@@ -176,9 +232,6 @@ func (c *Client) GetFullRelations(ctx context.Context, id int) ([]RelationEntry,
 			IsCurrent: res.entry.ID == id,
 			IsExtra:   false,
 		})
-		if res.entry.ID == id {
-			relations[len(relations)-1].Relation = "Current"
-		}
 	}
 
 	if !seen[id] {
@@ -201,3 +254,9 @@ func (c *Client) GetFullRelations(ctx context.Context, id int) ([]RelationEntry,
 
 	return relations, nil
 }
+
+func (c *Client) WarmFullRelations(id int) {
+	c.runAsyncRefresh(func(ctx context.Context) {
+		_, _ = c.GetFullRelations(ctx, id)
+	})
+}

integrations/jikan/relations_test.go

@@ -2,6 +2,23 @@ package jikan
 
 import "testing"
 
+func runBoolCases(t *testing.T, tests []struct {
+	name  string
+	input string
+	want  bool
+}, fn func(string) bool) {
+	t.Helper()
+
+	for _, testCase := range tests {
+		t.Run(testCase.name, func(t *testing.T) {
+			got := fn(testCase.input)
+			if got != testCase.want {
+				t.Fatalf("expected %v, got %v", testCase.want, got)
+			}
+		})
+	}
+}
+
 func TestIsAllowedWatchOrderType(t *testing.T) {
 	tests := []struct {
 		name  string
@@ -16,14 +33,7 @@ func TestIsAllowedWatchOrderType(t *testing.T) {
 		{name: "empty", input: "", want: false},
 	}
 
-	for _, testCase := range tests {
-		t.Run(testCase.name, func(t *testing.T) {
-			got := isAllowedWatchOrderType(testCase.input)
-			if got != testCase.want {
-				t.Fatalf("expected %v, got %v", testCase.want, got)
-			}
-		})
-	}
+	runBoolCases(t, tests, isAllowedWatchOrderType)
 }
 
 func TestWatchOrderTypeLabel(t *testing.T) {
@@ -58,12 +68,5 @@ func TestAllowedWatchOrderTypeFromDataset(t *testing.T) {
 		{name: "label special", input: "Special", want: false},
 	}
 
-	for _, testCase := range tests {
-		t.Run(testCase.name, func(t *testing.T) {
-			got := isAllowedWatchOrderType(testCase.input)
-			if got != testCase.want {
-				t.Fatalf("expected %v, got %v", testCase.want, got)
-			}
-		})
-	}
+	runBoolCases(t, tests, isAllowedWatchOrderType)
 }

integrations/jikan/search.go

@@ -8,8 +8,8 @@ import (
 	"strings"
 )
 
-// SearchAdvanced performs a filtered anime search with type, status, ordering, and genre filters.
-func (c *Client) SearchAdvanced(ctx context.Context, query, animeType, status, orderBy, sort string, genres []int, sfw bool, page, limit int) (SearchResult, error) {
+// SearchAdvanced performs a filtered anime search with type, status, ordering, genre filters, and studio (producer) filters.
+func (c *Client) SearchAdvanced(ctx context.Context, query, animeType, status, orderBy, sort string, genres []int, studioID int, sfw bool, page, limit int) (SearchResult, error) {
 	if page < 1 {
 		page = 1
 	}
@@ -26,7 +26,7 @@ func (c *Client) SearchAdvanced(ctx context.Context, query, animeType, status, o
 		genresParam = strings.Join(ids, ",")
 	}
 
-	cacheKey := fmt.Sprintf("search:%s:%s:%s:%s:%s:%s:%v:%d:%d", query, animeType, status, orderBy, sort, genresParam, sfw, page, limit)
+	cacheKey := fmt.Sprintf("search:%s:%s:%s:%s:%s:%s:%d:%v:%d:%d", query, animeType, status, orderBy, sort, genresParam, studioID, sfw, page, limit)
 
 	var result SearchResponse
 	reqURL := fmt.Sprintf("%s/anime?page=%d", c.baseURL, page)
@@ -42,6 +42,9 @@ func (c *Client) SearchAdvanced(ctx context.Context, query, animeType, status, o
 	if status != "" {
 		reqURL += "&status=" + url.QueryEscape(status)
 	}
+	if studioID > 0 {
+		reqURL += "&producers=" + strconv.Itoa(studioID)
+	}
 	if orderBy != "" {
 		reqURL += "&order_by=" + url.QueryEscape(orderBy)
 	}

integrations/jikan/seasons.go

@@ -15,34 +15,22 @@ type ScheduleResult struct {
 
 // GetSeasonsNow returns currently airing anime for the current season.
 func (c *Client) GetSeasonsNow(ctx context.Context, page int) (TopAnimeResult, error) {
-	if page < 1 {
-		page = 1
-	}
-	cacheKey := fmt.Sprintf("seasons_now:%d", page)
-
-	var result TopAnimeResponse
-	reqURL := fmt.Sprintf("%s/seasons/now?page=%d", c.baseURL, page)
-
-	err := c.getWithCache(ctx, cacheKey, shortCacheTTL, reqURL, &result)
-	if err != nil {
-		return TopAnimeResult{}, err
-	}
-
-	return TopAnimeResult{
-		Animes:      result.Data,
-		HasNextPage: result.Pagination.HasNextPage,
-	}, nil
+	return c.getSeasonList(ctx, page, "now")
 }
 
 // GetSeasonsUpcoming returns anime scheduled to air in upcoming seasons.
 func (c *Client) GetSeasonsUpcoming(ctx context.Context, page int) (TopAnimeResult, error) {
+	return c.getSeasonList(ctx, page, "upcoming")
+}
+
+func (c *Client) getSeasonList(ctx context.Context, page int, season string) (TopAnimeResult, error) {
 	if page < 1 {
 		page = 1
 	}
-	cacheKey := fmt.Sprintf("seasons_upcoming:%d", page)
+	cacheKey := fmt.Sprintf("seasons_%s:%d", season, page)
 
 	var result TopAnimeResponse
-	reqURL := fmt.Sprintf("%s/seasons/upcoming?page=%d", c.baseURL, page)
+	reqURL := fmt.Sprintf("%s/seasons/%s?page=%d", c.baseURL, season, page)
 
 	err := c.getWithCache(ctx, cacheKey, shortCacheTTL, reqURL, &result)
 	if err != nil {

integrations/jikan/studio.go

@@ -1,6 +1,9 @@
 package jikan
 
-import ()
+import (
+	"context"
+	"fmt"
+)
 
 type ProducerResponse struct {
 	Data struct {
@@ -24,3 +27,18 @@ type ProducerResponse struct {
 		} `json:"external"`
 	} `json:"data"`
 }
+
+func (c *Client) GetProducerByID(ctx context.Context, id int) (ProducerResponse, error) {
+	if id <= 0 {
+		return ProducerResponse{}, fmt.Errorf("invalid producer id")
+	}
+
+	cacheKey := fmt.Sprintf("producer:%d", id)
+	reqURL := fmt.Sprintf("%s/producers/%d", c.baseURL, id)
+
+	var result ProducerResponse
+	if err := c.getWithCache(ctx, cacheKey, producerCacheTTL, reqURL, &result); err != nil {
+		return ProducerResponse{}, err
+	}
+	return result, nil
+}

integrations/playback/allanime/client.go

@@ -1,3 +1,4 @@
+// Package allanime provides an integration with the AllAnime API for episode playback.
 package allanime
 
 import (
@@ -11,9 +12,8 @@ import (
 	"fmt"
 	"io"
 	"mal/internal/domain"
-	"mal/pkg/net/limits"
-	"mal/pkg/net/useragent"
-	"mal/pkg/net/utls"
+	"mal/pkg"
+	netutil "mal/pkg/net"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -25,18 +25,13 @@ const (
 	allAnimeBaseURL  = "https://api.allanime.day"
 	allAnimeReferer  = "https://allmanga.to/"
 	allAnimeOrigin   = "https://youtu-chan.com"
-	defaultUserAgent = useragent.Firefox121
+	defaultUserAgent = netutil.Firefox121
 )
 
 var (
 	aesKeys = []string{"Xot36i3lK3:v1", "SimtVuagFbGR2K7P"}
 )
 
-var allAnimeUTLSClient = &http.Client{
-	Transport: &utls.UtlsRoundTripper{},
-	Timeout:   30 * time.Second,
-}
-
 type searchResult struct {
 	ID    string
 	MalID string
@@ -51,6 +46,7 @@ type AvailableEpisodes struct {
 
 type AllAnimeProvider struct {
 	httpClient *http.Client
+	utlsClient *http.Client
 	extractor  *providerExtractor
 }
 
@@ -59,6 +55,10 @@ func NewAllAnimeProvider() *AllAnimeProvider {
 		httpClient: &http.Client{
 			Timeout: 30 * time.Second,
 		},
+		utlsClient: &http.Client{
+			Transport: &netutil.UtlsRoundTripper{},
+			Timeout:   30 * time.Second,
+		},
 		extractor: newProviderExtractor(),
 	}
 }
@@ -67,60 +67,75 @@ func (c *AllAnimeProvider) Name() string {
 	return "AllAnime"
 }
 
-func (c *AllAnimeProvider) Search(ctx context.Context, query string, mode string) ([]searchResult, error) {
-	// 1. Search for the show to get its AllAnime ID
-	graphqlQuery := `query($search: SearchInput, $limit: Int, $page: Int, $translationType: VaildTranslationTypeEnumType, $countryOrigin: VaildCountryOriginEnumType) {
-		shows(search: $search, limit: $limit, page: $page, translationType: $translationType, countryOrigin: $countryOrigin) {
-			edges {
-				_id
-				malId
-				name
-			}
-		}
-	}`
+const searchQuery = `query(
+  $search: SearchInput
+  $translationType: VaildTranslationTypeEnumType
+  $limit: Int = 40
+  $page: Int = 1
+  $countryOrigin: VaildCountryOriginEnumType = ALL
+) {
+  shows(
+    search: $search
+    limit: $limit
+    page: $page
+    translationType: $translationType
+    countryOrigin: $countryOrigin
+  ) {
+    edges {
+      _id
+      malId
+      name
+    }
+  }
+}`
 
-	variables := map[string]any{
-		"search": map[string]any{
-			"allowAdult":   false,
-			"allowUnknown": false,
-			"query":        query,
-		},
-		"limit":           40,
-		"page":            1,
-		"translationType": mode,
-		"countryOrigin":   "ALL",
+func (c *AllAnimeProvider) Search(ctx context.Context, query string, mode string) ([]searchResult, error) {
+	type searchData struct {
+		Shows struct {
+			Edges []struct {
+				ID    string `json:"_id"`
+				MalID string `json:"malId"`
+				Name  string `json:"name"`
+			} `json:"edges"`
+		} `json:"shows"`
 	}
 
-	result, err := c.graphqlRequest(ctx, graphqlQuery, variables)
+	type searchInput struct {
+		AllowAdult   bool   `json:"allowAdult"`
+		AllowUnknown bool   `json:"allowUnknown"`
+		Query        string `json:"query"`
+	}
+
+	type searchVariables struct {
+		Search          searchInput `json:"search"`
+		TranslationType string      `json:"translationType"`
+	}
+
+	vars := searchVariables{
+		Search: searchInput{
+			AllowAdult:   false,
+			AllowUnknown: false,
+			Query:        query,
+		},
+		TranslationType: mode,
+	}
+
+	data, err := graphql.Post[searchData](ctx, c.httpClient, allAnimeBaseURL+"/api", searchQuery, vars, graphql.PostOptions{
+		Headers: map[string]string{
+			"Referer":    allAnimeReferer,
+			"User-Agent": defaultUserAgent,
+		},
+		BodyMax: netutil.MiB2,
+	})
 	if err != nil {
 		return nil, err
 	}
 
-	data, ok := result["data"].(map[string]any)
-	if !ok {
-		return nil, fmt.Errorf("invalid search response")
-	}
-
-	shows, ok := data["shows"].(map[string]any)
-	if !ok {
-		return nil, fmt.Errorf("invalid shows payload")
-	}
-
-	edges, ok := shows["edges"].([]any)
-	if !ok {
-		return nil, fmt.Errorf("invalid search edges")
-	}
-
-	out := make([]searchResult, 0, len(edges))
-	for _, edge := range edges {
-		item, ok := edge.(map[string]any)
-		if !ok {
-			continue
-		}
-
-		id, _ := item["_id"].(string)
-		malID, _ := item["malId"].(string)
-		name, _ := item["name"].(string)
+	out := make([]searchResult, 0, len(data.Shows.Edges))
+	for _, edge := range data.Shows.Edges {
+		id := edge.ID
+		malID := edge.MalID
+		name := edge.Name
 		if unquoted, err := strconv.Unquote("\"" + name + "\""); err == nil {
 			name = unquoted
 		}
@@ -206,7 +221,13 @@ func (c *AllAnimeProvider) GetEpisodeAvailability(ctx context.Context, animeID i
 }
 
 func (c *AllAnimeProvider) ResolveEpisodeProviderID(ctx context.Context, animeID int, titleCandidates []string) (string, error) {
-	return c.resolveShowIDStrict(ctx, animeID, titleCandidates, "sub")
+	for _, mode := range []string{"sub", "dub"} {
+		showID, err := c.resolveShowIDStrict(ctx, animeID, titleCandidates, mode)
+		if err == nil {
+			return showID, nil
+		}
+	}
+	return "", fmt.Errorf("allanime: no exact mal id match for %d", animeID)
 }
 
 func (c *AllAnimeProvider) GetEpisodeAvailabilityByProviderID(ctx context.Context, showID string) (domain.EpisodeAvailability, error) {
@@ -233,7 +254,7 @@ func (c *AllAnimeProvider) resolveShowIDStrict(ctx context.Context, animeID int,
 			}
 		}
 	}
-	return "", fmt.Errorf("allanime: no strict mal id match for %d", animeID)
+	return "", fmt.Errorf("allanime: no exact mal id match for %d in %s search", animeID, mode)
 }
 
 func parseEpisodeNumbers(raw []string) []int {
@@ -274,15 +295,9 @@ func (c *AllAnimeProvider) graphqlRequest(ctx context.Context, query string, var
 	req.Header.Set("Referer", allAnimeReferer)
 	req.Header.Set("User-Agent", defaultUserAgent)
 
-	resp, err := c.httpClient.Do(req)
+	resp, respBody, err := executeAndReadResponse(c.httpClient, req, "execute graphql request", "read graphql response")
 	if err != nil {
-		return nil, fmt.Errorf("execute graphql request: %w", err)
-	}
-	defer func() { _ = resp.Body.Close() }()
-
-	respBody, err := io.ReadAll(io.LimitReader(resp.Body, limits.MiB2))
-	if err != nil {
-		return nil, fmt.Errorf("read graphql response: %w", err)
+		return nil, err
 	}
 
 	if resp.StatusCode != http.StatusOK {
@@ -329,15 +344,9 @@ func (c *AllAnimeProvider) graphqlRequestWithHash(ctx context.Context, showID, e
 	req.Header.Set("Sec-Fetch-Mode", "cors")
 	req.Header.Set("Sec-Fetch-Site", "cross-site")
 
-	resp, err := allAnimeUTLSClient.Do(req)
+	resp, respBody, err := executeAndReadResponse(c.utlsClient, req, "execute GET request", "read response")
 	if err != nil {
-		return nil, fmt.Errorf("execute GET request: %w", err)
-	}
-	defer func() { _ = resp.Body.Close() }()
-
-	respBody, err := io.ReadAll(io.LimitReader(resp.Body, limits.MiB2))
-	if err != nil {
-		return nil, fmt.Errorf("read response: %w", err)
+		return nil, err
 	}
 
 	if resp.StatusCode != http.StatusOK {
@@ -450,49 +459,7 @@ func (c *AllAnimeProvider) GetEpisodeSources(ctx context.Context, showID string,
 		return nil, fmt.Errorf("no source references")
 	}
 
-	out := make([]StreamSource, 0, len(references))
-	for _, ref := range references {
-		target := strings.TrimSpace(ref.URL)
-		if target == "" {
-			continue
-		}
-
-		if strings.HasPrefix(target, "http://") || strings.HasPrefix(target, "https://") {
-			sourceType := detectStreamType(target)
-			if sourceType == "unknown" {
-				sourceType = detectEmbedType(target)
-			}
-
-			out = append(out, buildStreamSource(target, sourceType, ref.Name))
-			continue
-		}
-
-		decoded := decodeSourceURL(target)
-		if decoded == "" {
-			continue
-		}
-
-		if strings.HasPrefix(decoded, "http://") || strings.HasPrefix(decoded, "https://") {
-			sourceType := detectStreamType(decoded)
-			if sourceType == "unknown" {
-				sourceType = detectEmbedType(decoded)
-			}
-
-			out = append(out, buildStreamSource(decoded, sourceType, ref.Name))
-			continue
-		}
-
-		if !strings.HasPrefix(decoded, "/") {
-			decoded = "/" + decoded
-		}
-
-		extracted, err := c.extractor.ExtractVideoLinks(ctx, decoded)
-		if err != nil {
-			continue
-		}
-
-		out = append(out, extracted...)
-	}
+	out := c.resolveSourceReferences(ctx, references)
 
 	if len(out) == 0 {
 		return nil, fmt.Errorf("no playable sources extracted")
@@ -517,6 +484,10 @@ func (c *AllAnimeProvider) extractSourceURLsFromData(ctx context.Context, data m
 		return nil
 	}
 
+	return c.resolveSourceReferences(ctx, references)
+}
+
+func (c *AllAnimeProvider) resolveSourceReferences(ctx context.Context, references []sourceReference) []StreamSource {
 	out := make([]StreamSource, 0, len(references))
 	for _, ref := range references {
 		target := strings.TrimSpace(ref.URL)
@@ -564,6 +535,21 @@ func (c *AllAnimeProvider) extractSourceURLsFromData(ctx context.Context, data m
 	return out
 }
 
+func executeAndReadResponse(client *http.Client, req *http.Request, executeErrPrefix string, readErrPrefix string) (*http.Response, []byte, error) {
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, nil, fmt.Errorf("%s: %w", executeErrPrefix, err)
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	body, err := io.ReadAll(io.LimitReader(resp.Body, netutil.MiB2))
+	if err != nil {
+		return nil, nil, fmt.Errorf("%s: %w", readErrPrefix, err)
+	}
+
+	return resp, body, nil
+}
+
 func buildStreamSource(url, sourceType, provider string) StreamSource {
 	return StreamSource{
 		URL:      url,

integrations/playback/allanime/extractor.go

@@ -2,9 +2,10 @@ package allanime
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"io"
-	"mal/pkg/net/limits"
+	netutil "mal/pkg/net"
 	"net/http"
 	"regexp"
 	"strconv"
@@ -54,7 +55,7 @@ func (e *providerExtractor) ExtractVideoLinks(ctx context.Context, providerPath
 
 	defer func() { _ = resp.Body.Close() }()
 
-	body, err := io.ReadAll(io.LimitReader(resp.Body, limits.MiB2)) // 2MB limit
+	body, err := io.ReadAll(io.LimitReader(resp.Body, netutil.MiB2)) // 2MB limit
 	if err != nil {
 		return nil, fmt.Errorf("read provider response: %w", err)
 	}
@@ -66,25 +67,83 @@ func (e *providerExtractor) ExtractVideoLinks(ctx context.Context, providerPath
 func (e *providerExtractor) parseProviderResponse(ctx context.Context, response string) []StreamSource {
 	sources := make([]StreamSource, 0)
 	providerReferer := e.referer
-
-	// extract per-source referer if present
-	refererPattern := regexp.MustCompile(`"Referer":"([^"]+)"`)
-	if match := refererPattern.FindStringSubmatch(response); len(match) >= 2 {
-		providerReferer = strings.ReplaceAll(match[1], `\/`, "/")
+	var root any
+	if err := json.Unmarshal([]byte(response), &root); err != nil {
+		return sources
 	}
+
+	type linkItem struct {
+		link          string
+		resolutionStr string
+	}
+	type hlsItem struct {
+		url         string
+		hardsubLang string
+	}
+
+	linkItems := make([]linkItem, 0)
+	hlsItems := make([]hlsItem, 0)
+	subtitles := make([]Subtitle, 0)
+
+	var walk func(v any)
+	walk = func(v any) {
+		switch x := v.(type) {
+		case map[string]any:
+			if ref, ok := x["Referer"].(string); ok && strings.TrimSpace(ref) != "" {
+				providerReferer = strings.TrimSpace(ref)
+			}
+
+			if link, ok := x["link"].(string); ok {
+				if res, ok := x["resolutionStr"].(string); ok {
+					linkItems = append(linkItems, linkItem{link: link, resolutionStr: res})
+				}
+			}
+
+			if u, ok := x["url"].(string); ok {
+				if lang, ok := x["hardsub_lang"].(string); ok {
+					hlsItems = append(hlsItems, hlsItem{url: u, hardsubLang: lang})
+				}
+			}
+
+			if subs, ok := x["subtitles"].([]any); ok {
+				for _, sub := range subs {
+					obj, ok := sub.(map[string]any)
+					if !ok {
+						continue
+					}
+					lang, _ := obj["lang"].(string)
+					src, _ := obj["src"].(string)
+					lang = strings.TrimSpace(lang)
+					src = strings.TrimSpace(src)
+					if lang == "" || src == "" {
+						continue
+					}
+					subtitles = append(subtitles, Subtitle{Lang: lang, URL: src})
+				}
+			}
+
+			for _, child := range x {
+				walk(child)
+			}
+		case []any:
+			for _, child := range x {
+				walk(child)
+			}
+		}
+	}
+
+	walk(root)
+
 	if providerReferer == "" {
 		providerReferer = e.referer
 	}
 
-	// extract direct link sources (mp4/embed)
-	linkPattern := regexp.MustCompile(`"link":"([^"]+)","resolutionStr":"([^"]+)"`)
-	for _, match := range linkPattern.FindAllStringSubmatch(response, -1) {
-		if len(match) < 3 {
+	for _, item := range linkItems {
+		link := strings.TrimSpace(item.link)
+		if link == "" {
 			continue
 		}
-
-		link := strings.ReplaceAll(match[1], `\/`, "/")
-		quality := strings.TrimSpace(match[2])
+		quality := strings.TrimSpace(item.resolutionStr)
 		sourceType := detectStreamType(link)
 		if sourceType == "unknown" {
 			sourceType = detectEmbedType(link)
@@ -99,14 +158,15 @@ func (e *providerExtractor) parseProviderResponse(ctx context.Context, response
 		})
 	}
 
-	// extract HLS playlist sources
-	hlsPattern := regexp.MustCompile(`"url":"([^"]+)","hardsub_lang":"en-US"`)
-	for _, match := range hlsPattern.FindAllStringSubmatch(response, -1) {
-		if len(match) < 2 {
+	for _, item := range hlsItems {
+		if strings.TrimSpace(item.url) == "" {
+			continue
+		}
+		if item.hardsubLang != "en-US" {
 			continue
 		}
 
-		playlistURL := strings.ReplaceAll(match[1], `\/`, "/")
+		playlistURL := strings.TrimSpace(item.url)
 		if strings.Contains(playlistURL, "master.m3u8") {
 			parsed, err := e.parseM3U8(ctx, playlistURL, providerReferer)
 			if err == nil {
@@ -124,26 +184,9 @@ func (e *providerExtractor) parseProviderResponse(ctx context.Context, response
 		})
 	}
 
-	// extract subtitles and attach to all sources
-	subtitlePattern := regexp.MustCompile(`"subtitles":\[(.*?)\]`)
-	if subtitleMatch := subtitlePattern.FindStringSubmatch(response); len(subtitleMatch) >= 2 {
-		subtitles := make([]Subtitle, 0)
-		subtitleEntryPattern := regexp.MustCompile(`"lang":"([^"]+)".*?"src":"([^"]+)"`)
-		for _, entry := range subtitleEntryPattern.FindAllStringSubmatch(subtitleMatch[1], -1) {
-			if len(entry) < 3 {
-				continue
-			}
-
-			subtitles = append(subtitles, Subtitle{
-				Lang: strings.TrimSpace(entry[1]),
-				URL:  strings.ReplaceAll(entry[2], `\/`, "/"),
-			})
-		}
-
-		if len(subtitles) > 0 {
-			for idx := range sources {
-				sources[idx].Subtitles = subtitles
-			}
+	if len(subtitles) > 0 && len(sources) > 0 {
+		for idx := range sources {
+			sources[idx].Subtitles = append([]Subtitle(nil), subtitles...)
 		}
 	}
 
@@ -158,7 +201,7 @@ func (e *providerExtractor) parseM3U8(ctx context.Context, masterURL string, ref
 	}
 	defer func() { _ = resp.Body.Close() }()
 
-	body, err := io.ReadAll(io.LimitReader(resp.Body, limits.KiB512)) // 512KB limit
+	body, err := io.ReadAll(io.LimitReader(resp.Body, netutil.KiB512)) // 512KB limit
 	if err != nil {
 		return nil, err
 	}

integrations/watchorder/watch_order.go

@@ -1,3 +1,4 @@
+// Package watchorder provides anime watch order data from various sources.
 package watchorder
 
 import (
@@ -5,8 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"mal/pkg/net/limits"
-	"mal/pkg/net/useragent"
+	netutil "mal/pkg/net"
 	"net/http"
 	"regexp"
 	"strconv"
@@ -82,36 +82,12 @@ func parseRootID(url string) (int, error) {
 }
 
 func addCommonHeaders(request *http.Request) {
-	request.Header.Set("User-Agent", useragent.Chrome135)
-	request.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8")
-	request.Header.Set("Accept-Language", "en-US,en;q=0.9")
-	request.Header.Set("Referer", "https://chiaki.site/")
-	request.Header.Set("Cache-Control", "no-cache")
+	netutil.SetBrowserHTMLHeaders(request, "https://chiaki.site/")
 }
 
 func fetchDocument(ctx context.Context, httpClient *http.Client, url string) (*goquery.Document, error) {
-	client := httpClient
-	if client == nil {
-		client = http.DefaultClient
-	}
-
-	request, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	addCommonHeaders(request)
-
-	response, err := client.Do(request)
-	if err != nil {
-		return nil, fmt.Errorf("request failed: %w", err)
-	}
-	defer func() { _ = response.Body.Close() }()
-
-	if response.StatusCode != http.StatusOK {
-		// limit body read for error context; avoid reading large error pages
-		body, _ := io.ReadAll(io.LimitReader(response.Body, limits.Bytes512))
-		return nil, &HTTPStatusError{
+	document, _, err := netutil.FetchHTMLDocument(ctx, httpClient, url, addCommonHeaders, func(response *http.Response, body []byte) error {
+		return &HTTPStatusError{
 			StatusCode:  response.StatusCode,
 			URL:         url,
 			Server:      strings.TrimSpace(response.Header.Get("Server")),
@@ -120,14 +96,8 @@ func fetchDocument(ctx context.Context, httpClient *http.Client, url string) (*g
 			ContentType: strings.TrimSpace(response.Header.Get("Content-Type")),
 			BodyPreview: strings.Join(strings.Fields(strings.TrimSpace(string(body))), " "),
 		}
-	}
-
-	document, err := goquery.NewDocumentFromReader(response.Body)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse html: %w", err)
-	}
-
-	return document, nil
+	})
+	return document, err
 }
 
 func extractTypeLabelsByID(doc *goquery.Document) map[int]string {
@@ -241,7 +211,7 @@ func fetchProxyText(ctx context.Context, httpClient *http.Client, url string) (s
 		return "", fmt.Errorf("proxy status %d", response.StatusCode)
 	}
 
-	body, err := io.ReadAll(io.LimitReader(response.Body, limits.MiB2))
+	body, err := io.ReadAll(io.LimitReader(response.Body, netutil.MiB2))
 	if err != nil {
 		return "", fmt.Errorf("failed to read proxy response: %w", err)
 	}

integrations/watchorder/watch_order_test.go

@@ -141,10 +141,10 @@ Jujutsu Kaisen 0
 	testClient := &http.Client{
 		Timeout: time.Second,
 		Transport: roundTripFunc(func(request *http.Request) (*http.Response, error) {
-			switch {
-			case request.URL.Host == "chiaki.site":
+			switch request.URL.Host {
+			case "chiaki.site":
 				return mockResponse(http.StatusForbidden, map[string]string{"Content-Type": "text/html; charset=utf-8"}, "blocked"), nil
-			case request.URL.Host == "r.jina.ai":
+			case "r.jina.ai":
 				// Proxy response is plain text/markdown.
 				return mockResponse(http.StatusOK, map[string]string{"Content-Type": "text/plain; charset=utf-8"}, proxyPayload), nil
 			default:

internal/anime/command_palette.go

@@ -0,0 +1,193 @@
+package anime
+
+import (
+	"context"
+	"fmt"
+	"mal/internal/db"
+	"mal/internal/domain"
+	"mal/internal/server"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+type commandPaletteItem struct {
+	ID       string `json:"id"`
+	Type     string `json:"type"`
+	Label    string `json:"label"`
+	Subtitle string `json:"subtitle"`
+	Href     string `json:"href"`
+	Image    string `json:"image,omitempty"`
+	Icon     string `json:"icon,omitempty"`
+}
+
+func (h *AnimeHandler) HandleCommandPalette(c *gin.Context) {
+	user := server.CurrentUser(c)
+	if user == nil {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "Unauthorized"})
+		return
+	}
+
+	query := strings.TrimSpace(c.Query("q"))
+	items := make([]commandPaletteItem, 0, 12)
+
+	if query != "" {
+		items = append(items, commandPaletteItem{
+			ID:       "search:" + strings.ToLower(query),
+			Type:     "search",
+			Label:    fmt.Sprintf("Search anime for %q", query),
+			Subtitle: "Browse",
+			Href:     "/browse?q=" + url.QueryEscape(query),
+			Icon:     "search",
+		})
+
+		if len(query) >= 2 {
+			items = append(items, h.commandPaletteAnimeResults(c, query)...)
+		}
+
+		items = append(items, h.commandPaletteNavigationItems(query)...)
+		items = append(items, h.commandPaletteContinueItems(c, user.ID, query)...)
+		items = append(items, h.commandPalettePersonalItems(c, user.ID, query)...)
+		c.JSON(http.StatusOK, items)
+		return
+	}
+
+	items = append(items, h.commandPaletteContinueItems(c, user.ID, query)...)
+	items = append(items, h.commandPaletteNavigationItems(query)...)
+	items = append(items, h.commandPalettePersonalItems(c, user.ID, query)...)
+	c.JSON(http.StatusOK, items)
+}
+
+func (h *AnimeHandler) commandPaletteNavigationItems(query string) []commandPaletteItem {
+	all := []commandPaletteItem{
+		{ID: "nav:discover", Type: "navigation", Label: "Go to Discover", Subtitle: "Navigation", Href: "/discover", Icon: "compass"},
+		{ID: "nav:watchlist", Type: "navigation", Label: "Go to Watchlist", Subtitle: "Navigation", Href: "/watchlist", Icon: "bookmark"},
+		{ID: "nav:popular", Type: "navigation", Label: "Browse popular", Subtitle: "Browse", Href: "/browse?order_by=popularity&sort=desc", Icon: "trending"},
+		{ID: "nav:airing", Type: "navigation", Label: "Currently airing", Subtitle: "Browse", Href: "/browse?status=airing&order_by=popularity&sort=desc", Icon: "play"},
+	}
+	if query == "" {
+		return all
+	}
+
+	filtered := make([]commandPaletteItem, 0, len(all))
+	for _, item := range all {
+		if commandPaletteMatches(query, item.Label, item.Subtitle) {
+			filtered = append(filtered, item)
+		}
+	}
+	return filtered
+}
+
+func (h *AnimeHandler) commandPaletteAnimeResults(c *gin.Context, query string) []commandPaletteItem {
+	searchCtx, cancel := context.WithTimeout(c.Request.Context(), 800*time.Millisecond)
+	defer cancel()
+
+	res, err := h.svc.SearchAdvanced(searchCtx, query, "", "", "", "", nil, 0, true, 1, 5)
+	if err != nil {
+		return nil
+	}
+
+	animes := wrapAnimes(res.Animes)
+	items := make([]commandPaletteItem, 0, len(animes))
+	for _, anime := range animes {
+		items = append(items, commandPaletteItem{
+			ID:       fmt.Sprintf("anime:%d", anime.MalID),
+			Type:     "anime",
+			Label:    anime.DisplayTitle(),
+			Subtitle: strings.TrimSpace("Anime " + anime.Type),
+			Href:     fmt.Sprintf("/anime/%d", anime.MalID),
+			Image:    anime.ImageURL(),
+		})
+	}
+	return items
+}
+
+func (h *AnimeHandler) commandPalettePersonalItems(c *gin.Context, userID string, query string) []commandPaletteItem {
+	items := make([]commandPaletteItem, 0, 5)
+
+	watchlist, err := h.watchlistSvc.GetCommandPaletteWatchlist(c.Request.Context(), userID, query, 5)
+	if err != nil {
+		return items
+	}
+
+	for _, entry := range watchlist {
+		title := watchlistTitle(entry)
+		items = append(items, commandPaletteItem{
+			ID:       fmt.Sprintf("watchlist:%d", entry.AnimeID),
+			Type:     "watchlist",
+			Label:    title,
+			Subtitle: watchlistStatusLabel(entry.Status),
+			Href:     fmt.Sprintf("/anime/%d", entry.AnimeID),
+			Image:    entry.ImageUrl,
+		})
+		if len(items) >= 5 {
+			return items
+		}
+	}
+
+	return items
+}
+
+func (h *AnimeHandler) commandPaletteContinueItems(c *gin.Context, userID string, query string) []commandPaletteItem {
+	items := make([]commandPaletteItem, 0, 5)
+
+	rows, err := h.watchlistSvc.GetCommandPaletteContinueWatching(c.Request.Context(), userID, query, 5)
+	if err != nil {
+		return items
+	}
+
+	for _, row := range rows {
+		title := continueWatchingTitle(row)
+		episode := ""
+		href := fmt.Sprintf("/anime/%d/watch", row.AnimeID)
+		if row.CurrentEpisode.Valid {
+			episode = fmt.Sprintf(" episode %d", row.CurrentEpisode.Int64)
+			href = fmt.Sprintf("%s?ep=%d", href, row.CurrentEpisode.Int64)
+		}
+		items = append(items, commandPaletteItem{
+			ID:       fmt.Sprintf("continue:%d", row.AnimeID),
+			Type:     "continue",
+			Label:    "Continue watching " + title,
+			Subtitle: "Resume" + episode,
+			Href:     href,
+			Image:    row.ImageUrl,
+		})
+		if len(items) >= 5 {
+			return items
+		}
+	}
+
+	return items
+}
+
+func commandPaletteMatches(query string, values ...string) bool {
+	needle := strings.ToLower(strings.TrimSpace(query))
+	for _, value := range values {
+		if strings.Contains(strings.ToLower(value), needle) {
+			return true
+		}
+	}
+	return false
+}
+
+func continueWatchingTitle(row db.GetContinueWatchingEntriesRow) string {
+	return row.DisplayTitle()
+}
+
+func watchlistTitle(row domain.UserWatchListRow) string {
+	return row.DisplayTitle()
+}
+
+func watchlistStatusLabel(status string) string {
+	switch status {
+	case "watching":
+		return "Watching"
+	case "plan_to_watch":
+		return "Plan to Watch"
+	default:
+		return "Watchlist"
+	}
+}

internal/anime/handler.go

@@ -0,0 +1,835 @@
+package anime
+
+import (
+	"context"
+	"fmt"
+	"mal/integrations/jikan"
+	"mal/internal/domain"
+	"mal/internal/observability"
+	"mal/internal/server"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+const (
+	animeSectionTimeout = 12 * time.Second
+	watchOrderTimeout   = 15 * time.Second
+	audioLookupTimeout  = 8 * time.Second
+)
+
+type AnimeHandler struct {
+	svc          Service
+	watchlistSvc domain.WatchlistService
+	episodeSvc   domain.EpisodeService
+
+	scheduleCacheMu sync.Mutex
+	scheduleCache   map[string]cachedWeekSchedule
+}
+
+type Service interface {
+	domain.AnimeCatalogService
+	domain.AnimeDiscoverService
+	domain.AnimeSearchService
+	domain.AnimeDetailsService
+	WarmDetailSections(id int)
+}
+
+func NewAnimeHandler(svc Service, watchlistSvc domain.WatchlistService, episodeSvc domain.EpisodeService) *AnimeHandler {
+	return &AnimeHandler{
+		svc:           svc,
+		watchlistSvc:  watchlistSvc,
+		episodeSvc:    episodeSvc,
+		scheduleCache: map[string]cachedWeekSchedule{},
+	}
+}
+
+func (h *AnimeHandler) watchlistMapForAnimes(ctx context.Context, userID string, animes []domain.Anime) map[int64]bool {
+	animeIDs := make([]int64, 0, len(animes))
+	for _, anime := range animes {
+		if anime.MalID > 0 {
+			animeIDs = append(animeIDs, int64(anime.MalID))
+		}
+	}
+	return h.watchlistMapForIDs(ctx, userID, animeIDs)
+}
+
+func (h *AnimeHandler) watchlistMapForIDs(ctx context.Context, userID string, animeIDs []int64) map[int64]bool {
+	if userID == "" || len(animeIDs) == 0 {
+		return map[int64]bool{}
+	}
+
+	watchlistMap, err := h.watchlistSvc.GetWatchlistMap(ctx, userID, animeIDs)
+	if err != nil {
+		return map[int64]bool{}
+	}
+	return watchlistMap
+}
+
+func animeAudioAvailabilityLabel(episodes []domain.CanonicalEpisode) string {
+	hasKnownSub := false
+	for _, episode := range episodes {
+		if episode.HasDub {
+			return "Dub available"
+		}
+		if episode.HasSub || episode.SubOnly {
+			hasKnownSub = true
+		}
+	}
+	if hasKnownSub {
+		return "Subtitled only"
+	}
+	return ""
+}
+
+func (h *AnimeHandler) animeAudioAvailability(ctx context.Context, anime domain.Anime) string {
+	if h.episodeSvc == nil {
+		return ""
+	}
+
+	audioCtx, cancel := context.WithTimeout(ctx, audioLookupTimeout)
+	defer cancel()
+
+	episodeList, err := h.episodeSvc.GetCanonicalEpisodes(audioCtx, anime, true)
+	if err != nil {
+		observability.Warn(
+			"anime_audio_availability_fetch_failed",
+			"anime",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+			},
+			err,
+		)
+		return ""
+	}
+	if episodeList.Source != "AllAnime" {
+		return ""
+	}
+
+	return animeAudioAvailabilityLabel(episodeList.Episodes)
+}
+
+func (h *AnimeHandler) Register(r *gin.Engine) {
+	r.GET("/", h.HandleCatalog)
+	r.GET("/api/catalog/airing", h.HandleCatalogAiring)
+	r.GET("/api/catalog/popular", h.HandleCatalogPopular)
+	r.GET("/api/catalog/continue", h.HandleCatalogContinue)
+	r.GET("/api/catalog/top-pick", h.HandleCatalogTopPickForYou)
+	r.GET("/discover", h.HandleDiscover)
+	r.GET("/discover/top-picks", h.HandleDiscoverTopPicksForYou)
+	r.GET("/api/discover/trending", h.HandleDiscoverTrending)
+	r.GET("/api/discover/upcoming", h.HandleDiscoverUpcoming)
+	r.GET("/api/discover/top", h.HandleDiscoverTop)
+	r.GET("/schedule", h.HandleSchedule)
+	r.GET("/api/schedule", h.HandleScheduleSection)
+	r.GET("/browse", h.HandleBrowse)
+	r.GET("/anime/:id", h.HandleAnimeDetails)
+	r.GET("/anime/:id/reviews", h.HandleAnimeReviews)
+	r.GET("/api/watch-order", h.HandleHTMLWatchOrder)
+	r.GET("/api/search-quick", h.HandleQuickSearch)
+	r.GET("/api/command-palette", h.HandleCommandPalette)
+	r.GET("/api/jikan/random/anime", h.HandleRandomAnime)
+	r.GET("/api/jikan/producers", h.HandleProducers)
+}
+
+func (h *AnimeHandler) HandleProducers(c *gin.Context) {
+	q := strings.TrimSpace(c.Query("q"))
+	page, err := strconv.Atoi(c.DefaultQuery("page", "1"))
+	if err != nil {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid page")
+		return
+	}
+	if page < 1 {
+		page = 1
+	}
+	limit, err := strconv.Atoi(c.DefaultQuery("limit", "50"))
+	if err != nil {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid limit")
+		return
+	}
+	if limit < 1 {
+		limit = 12
+	}
+	if limit > 12 {
+		limit = 12
+	}
+
+	res, err := h.svc.GetProducers(c.Request.Context(), q, page, limit)
+	if err != nil {
+		observability.Warn(
+			"producers_fetch_failed",
+			"anime",
+			"",
+			map[string]any{
+				"q":     q,
+				"page":  page,
+				"limit": limit,
+			},
+			err,
+		)
+		if strings.Contains(c.GetHeader("Accept"), "text/html") {
+			c.HTML(http.StatusOK, "browse.gohtml", gin.H{
+				"_fragment":   "studio_dropdown_items",
+				"StudioItems": []any{},
+				"HasNextPage": false,
+				"Page":        page,
+				"NextPage":    page + 1,
+				"Query":       q,
+				"Limit":       limit,
+			})
+			return
+		}
+
+		server.RespondError(
+			c,
+			http.StatusInternalServerError,
+			"producers_fetch_failed",
+			"anime",
+			"failed to load producers",
+			map[string]any{"q": q, "page": page, "limit": limit},
+			err,
+		)
+		return
+	}
+
+	type item struct {
+		ID   int    `json:"id"`
+		Name string `json:"name"`
+	}
+
+	items := make([]item, 0, len(res.Items))
+	for _, p := range res.Items {
+		name := jikan.ProducerListEntryName(p)
+		if p.MalID <= 0 || name == "" {
+			continue
+		}
+		items = append(items, item{ID: p.MalID, Name: name})
+	}
+
+	if strings.Contains(c.GetHeader("Accept"), "text/html") {
+		c.HTML(http.StatusOK, "browse.gohtml", gin.H{
+			"_fragment":   "studio_dropdown_items",
+			"StudioItems": items,
+			"HasNextPage": res.HasNextPage,
+			"Page":        page,
+			"NextPage":    page + 1,
+			"Query":       q,
+			"Limit":       limit,
+		})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"items":       items,
+		"hasNextPage": res.HasNextPage,
+		"nextPage":    page + 1,
+	})
+}
+
+func (h *AnimeHandler) HandleCatalog(c *gin.Context) {
+	user := server.CurrentUser(c)
+
+	c.HTML(http.StatusOK, "index.gohtml", gin.H{
+		"CurrentPath":  "/",
+		"User":         user,
+		"WatchlistMap": map[int64]bool{},
+	})
+}
+
+func (h *AnimeHandler) HandleCatalogAiring(c *gin.Context) {
+	h.renderCatalogSection(c, "Airing")
+}
+
+func (h *AnimeHandler) HandleCatalogPopular(c *gin.Context) {
+	h.renderCatalogSection(c, "Popular")
+}
+
+func (h *AnimeHandler) HandleCatalogContinue(c *gin.Context) {
+	h.renderCatalogSection(c, "Continue")
+}
+
+func (h *AnimeHandler) HandleCatalogTopPickForYou(c *gin.Context) {
+	userID := server.CurrentUserID(c)
+
+	data, err := h.svc.GetTopPickForYou(c.Request.Context(), userID)
+	if err != nil {
+		observability.Warn(
+			"top_pick_for_you_fetch_failed",
+			"anime",
+			"",
+			map[string]any{
+				"user_id": userID,
+			},
+			err,
+		)
+		c.AbortWithStatus(http.StatusInternalServerError)
+		return
+	}
+
+	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, data.Animes)
+
+	data.Section = "TopPickForYou"
+	data.Fragment = "top_pick_for_you_section"
+	data.WatchlistMap = watchlistMap
+	c.HTML(http.StatusOK, "index.gohtml", data)
+}
+
+func (h *AnimeHandler) renderCatalogSection(c *gin.Context, section string) {
+	userID := server.CurrentUserID(c)
+	data, err := h.svc.GetCatalogSection(c.Request.Context(), userID, section)
+	if err != nil {
+		h.abortSectionFetch(c, "catalog_section_fetch_failed", userID, section, err)
+		return
+	}
+
+	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, data.Animes)
+
+	data.Section = section
+	data.Fragment = "catalog_section"
+	data.WatchlistMap = watchlistMap
+	c.HTML(http.StatusOK, "index.gohtml", data)
+}
+
+func (h *AnimeHandler) HandleDiscover(c *gin.Context) {
+	user := server.CurrentUser(c)
+	c.HTML(http.StatusOK, "discover.gohtml", gin.H{
+		"CurrentPath": "/discover",
+		"User":        user,
+	})
+}
+
+func (h *AnimeHandler) HandleDiscoverTopPicksForYou(c *gin.Context) {
+	user := server.CurrentUser(c)
+	userID := server.CurrentUserID(c)
+
+	data, err := h.svc.GetTopPicksForYou(c.Request.Context(), userID)
+	if err != nil {
+		observability.Warn(
+			"top_picks_for_you_fetch_failed",
+			"anime",
+			"",
+			map[string]any{
+				"user_id": userID,
+			},
+			err,
+		)
+		c.AbortWithStatus(http.StatusInternalServerError)
+		return
+	}
+
+	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, data.Animes)
+
+	c.HTML(http.StatusOK, "discover.gohtml", gin.H{
+		"_fragment":    "",
+		"CurrentPath":  "/discover",
+		"User":         user,
+		"Animes":       data.Animes,
+		"WatchlistMap": watchlistMap,
+		"IsTopPicks":   true,
+	})
+}
+
+func (h *AnimeHandler) HandleDiscoverTrending(c *gin.Context) {
+	h.renderDiscoverSection(c, "Trending")
+}
+
+func (h *AnimeHandler) HandleDiscoverUpcoming(c *gin.Context) {
+	h.renderDiscoverSection(c, "Upcoming")
+}
+
+func (h *AnimeHandler) HandleDiscoverTop(c *gin.Context) {
+	h.renderDiscoverSection(c, "Top")
+}
+
+func (h *AnimeHandler) renderDiscoverSection(c *gin.Context, section string) {
+	userID := server.CurrentUserID(c)
+	data, err := h.svc.GetDiscoverSection(c.Request.Context(), userID, section)
+	if err != nil {
+		h.abortSectionFetch(c, "discover_section_fetch_failed", userID, section, err)
+		return
+	}
+
+	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, data.Animes)
+
+	data.Section = section
+	data.Fragment = "discover_section"
+	data.WatchlistMap = watchlistMap
+	c.HTML(http.StatusOK, "discover.gohtml", data)
+}
+
+func (h *AnimeHandler) abortSectionFetch(c *gin.Context, event string, userID string, section string, err error) {
+	observability.Warn(
+		event,
+		"anime",
+		"",
+		map[string]any{
+			"section": section,
+			"user_id": userID,
+		},
+		err,
+	)
+	c.AbortWithStatus(http.StatusInternalServerError)
+}
+
+func (h *AnimeHandler) HandleSchedule(c *gin.Context) {
+	user := server.CurrentUser(c)
+	year, week := parseYearWeek(c)
+	c.HTML(http.StatusOK, "schedule.gohtml", gin.H{
+		"CurrentPath":  "/schedule",
+		"User":         user,
+		"ScheduleYear": year,
+		"ScheduleWeek": week,
+	})
+}
+
+func (h *AnimeHandler) HandleScheduleSection(c *gin.Context) {
+	year, week := parseYearWeek(c)
+	timezone := scheduleTimezone(c)
+
+	schedule, err := h.getCachedAnimeScheduleWeek(c.Request.Context(), year, week, timezone)
+	if err != nil {
+		prevYear, prevWeek := adjacentISOWeek(year, week, -1)
+		nextYear, nextWeek := adjacentISOWeek(year, week, 1)
+		observability.Warn(
+			"animeschedule_fetch_failed",
+			"anime",
+			"",
+			map[string]any{
+				"year":     year,
+				"week":     week,
+				"timezone": timezone,
+			},
+			err,
+		)
+		c.HTML(http.StatusOK, "schedule.gohtml", gin.H{
+			"_fragment":     "schedule_section_scraped",
+			"ScheduleDays":  []any{},
+			"ScheduleYear":  year,
+			"ScheduleWeek":  week,
+			"PrevYear":      prevYear,
+			"PrevWeek":      prevWeek,
+			"NextYear":      nextYear,
+			"NextWeek":      nextWeek,
+			"ScheduleError": true,
+		})
+		return
+	}
+
+	days := buildScheduleDays(schedule, schedule.Year, schedule.Week)
+	prevYear, prevWeek := adjacentISOWeek(schedule.Year, schedule.Week, -1)
+	nextYear, nextWeek := adjacentISOWeek(schedule.Year, schedule.Week, 1)
+
+	c.HTML(http.StatusOK, "schedule.gohtml", gin.H{
+		"_fragment":    "schedule_section_scraped",
+		"ScheduleDays": days,
+		"ScheduleYear": schedule.Year,
+		"ScheduleWeek": schedule.Week,
+		"PrevYear":     prevYear,
+		"PrevWeek":     prevWeek,
+		"NextYear":     nextYear,
+		"NextWeek":     nextWeek,
+	})
+}
+
+func (h *AnimeHandler) HandleBrowse(c *gin.Context) {
+	q := c.Query("q")
+	animeType := c.Query("type")
+	status := c.Query("status")
+	orderBy := c.Query("order_by")
+	sort := c.Query("sort")
+	sfw := c.Query("sfw") != "false"
+	studioID := 0
+	if raw := strings.TrimSpace(c.Query("studio")); raw != "" {
+		id, err := strconv.Atoi(raw)
+		if err != nil || id < 0 {
+			server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid studio id")
+			return
+		}
+		studioID = id
+	}
+
+	var genres []int
+	for _, g := range c.QueryArray("genres") {
+		id, err := strconv.Atoi(g)
+		if err != nil {
+			server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid genre id")
+			return
+		}
+		if id > 0 {
+			genres = append(genres, id)
+		}
+	}
+
+	page, err := strconv.Atoi(c.DefaultQuery("page", "1"))
+	if err != nil {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid page")
+		return
+	}
+	if page < 1 {
+		page = 1
+	}
+
+	res, err := h.svc.SearchAdvanced(c.Request.Context(), q, animeType, status, orderBy, sort, genres, studioID, sfw, page, 24)
+	if err != nil {
+		server.RespondError(
+			c,
+			http.StatusInternalServerError,
+			"browse_search_failed",
+			"anime",
+			"failed to load browse results",
+			map[string]any{
+				"q":        q,
+				"type":     animeType,
+				"status":   status,
+				"order_by": orderBy,
+				"sort":     sort,
+				"studio":   studioID,
+				"sfw":      sfw,
+				"page":     page,
+			},
+			err,
+		)
+		return
+	}
+
+	user := server.CurrentUser(c)
+	userID := server.CurrentUserID(c)
+	animes := wrapAnimes(res.Animes)
+	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, animes)
+
+	studioName := ""
+	if studioID > 0 {
+		name, err := h.svc.GetProducerNameByID(c.Request.Context(), studioID)
+		if err == nil {
+			studioName = name
+		}
+	}
+
+	if c.GetHeader("HX-Request") == "true" && page > 1 {
+		c.HTML(http.StatusOK, "browse.gohtml", gin.H{
+			"_fragment":    "anime_card_scroll",
+			"Animes":       animes,
+			"NextPage":     page + 1,
+			"HasNextPage":  res.HasNextPage,
+			"Query":        q,
+			"Type":         animeType,
+			"Status":       status,
+			"OrderBy":      orderBy,
+			"Sort":         sort,
+			"Genres":       genres,
+			"Studio":       studioID,
+			"StudioName":   studioName,
+			"SFW":          sfw,
+			"WatchlistMap": watchlistMap,
+		})
+		return
+	}
+
+	genresList, _ := h.svc.GetGenres(c.Request.Context())
+	browseData := gin.H{
+		"CurrentPath":  "/browse",
+		"Query":        q,
+		"Type":         animeType,
+		"Status":       status,
+		"OrderBy":      orderBy,
+		"Sort":         sort,
+		"Genres":       genres,
+		"Studio":       studioID,
+		"StudioName":   studioName,
+		"SFW":          sfw,
+		"GenresList":   genresList,
+		"Animes":       animes,
+		"HasNextPage":  res.HasNextPage,
+		"NextPage":     page + 1,
+		"User":         user,
+		"WatchlistMap": watchlistMap,
+	}
+
+	if c.GetHeader("HX-Request") == "true" {
+		browseData["_fragment"] = "browse_content"
+		c.HTML(http.StatusOK, "browse.gohtml", browseData)
+		return
+	}
+
+	c.HTML(http.StatusOK, "browse.gohtml", browseData)
+}
+
+func (h *AnimeHandler) HandleAnimeDetails(c *gin.Context) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil || id <= 0 {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid anime id")
+		return
+	}
+
+	section := c.Query("section")
+	if section != "" && c.GetHeader("HX-Request") == "true" {
+		sectionCtx, cancel := context.WithTimeout(c.Request.Context(), animeSectionTimeout)
+		defer cancel()
+
+		var data any
+		var tplName string
+		var err error
+		switch section {
+		case "characters":
+			data, err = h.svc.GetCharacters(sectionCtx, id)
+			tplName = "anime_characters"
+		case "recommendations":
+			data, err = h.svc.GetRecommendations(sectionCtx, id)
+			tplName = "anime_recommendations"
+
+		case "statistics":
+			data, err = h.svc.GetStatistics(sectionCtx, id)
+			tplName = "anime_statistics"
+		case "themes":
+			data, err = h.svc.GetThemes(sectionCtx, id)
+			tplName = "anime_themes"
+		}
+
+		if err != nil {
+			observability.Warn(
+				"anime_section_fetch_failed",
+				"anime",
+				"",
+				map[string]any{
+					"section":  section,
+					"anime_id": id,
+				},
+				err,
+			)
+			if section == "recommendations" {
+				c.HTML(http.StatusOK, "anime.gohtml", gin.H{
+					"_fragment": "anime_recommendations_loading",
+					"AnimeID":   id,
+				})
+				return
+			}
+			c.Status(http.StatusNoContent)
+			return
+		}
+
+		c.HTML(http.StatusOK, "anime.gohtml", gin.H{
+			"_fragment": tplName,
+			"Items":     data,
+		})
+		return
+	}
+
+	anime, err := h.svc.GetAnimeByID(c.Request.Context(), id)
+	if err != nil {
+		c.Status(http.StatusNotFound)
+		return
+	}
+
+	h.svc.WarmDetailSections(id)
+
+	user := server.CurrentUser(c)
+	status := ""
+	var watchlistIDs []int64
+	ep := 0
+	var cwSeconds float64
+	if user != nil {
+		entry, err := h.watchlistSvc.GetWatchListEntry(c.Request.Context(), user.ID, int64(id))
+		if err == nil {
+			status = entry.Status
+			watchlistIDs = []int64{entry.AnimeID}
+		}
+
+		cwEntry, err := h.watchlistSvc.GetContinueWatchingEntry(c.Request.Context(), user.ID, int64(id))
+		if err == nil && cwEntry.CurrentEpisode.Valid {
+			ep = int(cwEntry.CurrentEpisode.Int64)
+			cwSeconds = cwEntry.CurrentTimeSeconds
+		}
+	}
+
+	audioAvailability := h.animeAudioAvailability(c.Request.Context(), anime)
+
+	c.HTML(http.StatusOK, "anime.gohtml", gin.H{
+		"Anime":                anime,
+		"AudioAvailability":    audioAvailability,
+		"CurrentPath":          fmt.Sprintf("/anime/%d", id),
+		"User":                 user,
+		"Status":               status,
+		"WatchlistIDs":         watchlistIDs,
+		"ContinueWatchingEp":   ep,
+		"ContinueWatchingTime": cwSeconds,
+	})
+}
+
+func (h *AnimeHandler) HandleHTMLWatchOrder(c *gin.Context) {
+	id, err := strconv.Atoi(c.Query("animeId"))
+	if err != nil || id <= 0 {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid anime id")
+		return
+	}
+
+	userID := server.CurrentUserID(c)
+
+	relationsCtx, cancel := context.WithTimeout(c.Request.Context(), watchOrderTimeout)
+	defer cancel()
+
+	relations, err := h.svc.GetRelations(relationsCtx, id)
+	if err != nil {
+		observability.Warn(
+			"relations_fetch_failed",
+			"anime",
+			"",
+			map[string]any{
+				"anime_id": id,
+			},
+			err,
+		)
+		c.HTML(http.StatusOK, "anime.gohtml", gin.H{
+			"_fragment": "watch_order_loading",
+			"AnimeID":   id,
+		})
+		return
+	}
+
+	relationAnimeIDs := make([]int64, 0, len(relations))
+	for _, relation := range relations {
+		if relation.Anime.MalID > 0 {
+			relationAnimeIDs = append(relationAnimeIDs, int64(relation.Anime.MalID))
+		}
+	}
+	watchlistMap := h.watchlistMapForIDs(c.Request.Context(), userID, relationAnimeIDs)
+
+	c.HTML(http.StatusOK, "anime.gohtml", gin.H{
+		"_fragment":    "watch_order",
+		"Relations":    relations,
+		"AnimeID":      id,
+		"WatchlistMap": watchlistMap,
+	})
+}
+
+func (h *AnimeHandler) HandleQuickSearch(c *gin.Context) {
+	query := c.Query("q")
+	if query == "" {
+		c.JSON(http.StatusOK, []any{})
+		return
+	}
+
+	res, err := h.svc.SearchAdvanced(c.Request.Context(), query, "", "", "", "", nil, 0, true, 1, 5)
+	if err != nil {
+		c.JSON(http.StatusOK, []any{})
+		return
+	}
+
+	userID := server.CurrentUserID(c)
+	animes := wrapAnimes(res.Animes)
+	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, animes)
+
+	type quickSearchResult struct {
+		ID          int    `json:"id"`
+		Title       string `json:"title"`
+		Type        string `json:"type"`
+		Year        int    `json:"year"`
+		Image       string `json:"image"`
+		InWatchlist bool   `json:"in_watchlist"`
+	}
+
+	output := make([]quickSearchResult, len(animes))
+	for i, anime := range animes {
+		output[i] = quickSearchResult{
+			ID:          anime.MalID,
+			Title:       anime.DisplayTitle(),
+			Type:        anime.Type,
+			Year:        anime.Year,
+			Image:       anime.ImageURL(),
+			InWatchlist: watchlistMap[int64(anime.MalID)],
+		}
+	}
+	c.JSON(http.StatusOK, output)
+}
+
+func (h *AnimeHandler) HandleRandomAnime(c *gin.Context) {
+	ctx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
+	defer cancel()
+
+	anime, err := h.svc.GetRandomAnime(ctx)
+	if err != nil {
+		server.RespondError(
+			c,
+			http.StatusInternalServerError,
+			"random_anime_fetch_failed",
+			"anime",
+			"failed to fetch random anime",
+			nil,
+			err,
+		)
+		return
+	}
+	if anime.MalID == 0 {
+		server.RespondHTMLOrJSONError(c, http.StatusBadGateway, "random anime unavailable")
+		return
+	}
+
+	inWatchlist := false
+	userID := server.CurrentUserID(c)
+	if userID != "" {
+		watchlistMap := h.watchlistMapForIDs(c.Request.Context(), userID, []int64{int64(anime.MalID)})
+		inWatchlist = watchlistMap[int64(anime.MalID)]
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"data":         anime,
+		"in_watchlist": inWatchlist,
+	})
+}
+
+func (h *AnimeHandler) HandleAnimeReviews(c *gin.Context) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil || id <= 0 {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid anime id")
+		return
+	}
+
+	page, err := strconv.Atoi(c.DefaultQuery("page", "1"))
+	if err != nil {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, "invalid page")
+		return
+	}
+	if page < 1 {
+		page = 1
+	}
+
+	reviews, hasNextPage, err := h.svc.GetReviews(c.Request.Context(), id, page)
+	if err != nil {
+		server.RespondError(
+			c,
+			http.StatusInternalServerError,
+			"anime_reviews_fetch_failed",
+			"anime",
+			"failed to load reviews",
+			map[string]any{"anime_id": id, "page": page},
+			err,
+		)
+		return
+	}
+
+	user := server.CurrentUser(c)
+
+	if c.GetHeader("HX-Request") == "true" && page > 1 {
+		c.HTML(http.StatusOK, "reviews.gohtml", gin.H{
+			"_fragment":   "review_cards",
+			"Reviews":     reviews,
+			"NextPage":    page + 1,
+			"HasNextPage": hasNextPage,
+			"AnimeID":     id,
+		})
+		return
+	}
+
+	c.HTML(http.StatusOK, "reviews.gohtml", gin.H{
+		"CurrentPath": fmt.Sprintf("/anime/%d/reviews", id),
+		"Reviews":     reviews,
+		"NextPage":    page + 1,
+		"HasNextPage": hasNextPage,
+		"AnimeID":     id,
+		"User":        user,
+	})
+}

internal/anime/handler/handler.go

@@ -1,654 +0,0 @@
-package handler
-
-import (
-	"context"
-	"fmt"
-	"log"
-	"mal/internal/db"
-	"mal/internal/domain"
-	"net/http"
-	"net/url"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/gin-gonic/gin"
-)
-
-type AnimeHandler struct {
-	svc          domain.AnimeService
-	watchlistSvc domain.WatchlistService
-}
-
-func NewAnimeHandler(svc domain.AnimeService, watchlistSvc domain.WatchlistService) *AnimeHandler {
-	return &AnimeHandler{
-		svc:          svc,
-		watchlistSvc: watchlistSvc,
-	}
-}
-
-func (h *AnimeHandler) watchlistMapForAnimes(ctx context.Context, userID string, animes []domain.Anime) map[int64]bool {
-	animeIDs := make([]int64, 0, len(animes))
-	for _, anime := range animes {
-		if anime.MalID > 0 {
-			animeIDs = append(animeIDs, int64(anime.MalID))
-		}
-	}
-	return h.watchlistMapForIDs(ctx, userID, animeIDs)
-}
-
-func (h *AnimeHandler) watchlistMapForIDs(ctx context.Context, userID string, animeIDs []int64) map[int64]bool {
-	if userID == "" || len(animeIDs) == 0 {
-		return map[int64]bool{}
-	}
-
-	watchlistMap, err := h.watchlistSvc.GetWatchlistMap(ctx, userID, animeIDs)
-	if err != nil {
-		return map[int64]bool{}
-	}
-	return watchlistMap
-}
-
-func (h *AnimeHandler) Register(r *gin.Engine) {
-
-	r.GET("/", h.HandleCatalog)
-	r.GET("/api/catalog/airing", h.HandleCatalogAiring)
-	r.GET("/api/catalog/popular", h.HandleCatalogPopular)
-	r.GET("/api/catalog/continue", h.HandleCatalogContinue)
-	r.GET("/discover", h.HandleDiscover)
-	r.GET("/api/discover/trending", h.HandleDiscoverTrending)
-	r.GET("/api/discover/upcoming", h.HandleDiscoverUpcoming)
-	r.GET("/api/discover/top", h.HandleDiscoverTop)
-	r.GET("/browse", h.HandleBrowse)
-	r.GET("/anime/:id", h.HandleAnimeDetails)
-	r.GET("/anime/:id/reviews", h.HandleAnimeReviews)
-	r.GET("/api/watch-order", h.HandleHTMLWatchOrder)
-	r.GET("/api/search-quick", h.HandleQuickSearch)
-	r.GET("/api/command-palette", h.HandleCommandPalette)
-	r.GET("/api/jikan/random/anime", h.HandleRandomAnime)
-}
-
-func (h *AnimeHandler) HandleCatalog(c *gin.Context) {
-	user, _ := c.Get("User")
-
-	c.HTML(http.StatusOK, "index.gohtml", gin.H{
-		"CurrentPath":  "/",
-		"User":         user,
-		"WatchlistMap": map[int64]bool{},
-	})
-}
-
-func (h *AnimeHandler) HandleCatalogAiring(c *gin.Context) {
-	h.renderCatalogSection(c, "Airing")
-}
-
-func (h *AnimeHandler) HandleCatalogPopular(c *gin.Context) {
-	h.renderCatalogSection(c, "Popular")
-}
-
-func (h *AnimeHandler) HandleCatalogContinue(c *gin.Context) {
-	h.renderCatalogSection(c, "Continue")
-}
-
-func (h *AnimeHandler) renderCatalogSection(c *gin.Context, section string) {
-	user, _ := c.Get("User")
-	userID := ""
-	if u, ok := user.(*domain.User); ok {
-		userID = u.ID
-	}
-	data, err := h.svc.GetCatalogSection(c.Request.Context(), userID, section)
-	if err != nil {
-		return
-	}
-
-	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, data.Animes)
-
-	data.Section = section
-	data.Fragment = "catalog_section"
-	data.WatchlistMap = watchlistMap
-	c.HTML(http.StatusOK, "index.gohtml", data)
-}
-
-func (h *AnimeHandler) HandleDiscover(c *gin.Context) {
-	user, _ := c.Get("User")
-	c.HTML(http.StatusOK, "discover.gohtml", gin.H{
-		"CurrentPath": "/discover",
-		"User":        user,
-	})
-}
-
-func (h *AnimeHandler) HandleDiscoverTrending(c *gin.Context) {
-	h.renderDiscoverSection(c, "Trending")
-}
-
-func (h *AnimeHandler) HandleDiscoverUpcoming(c *gin.Context) {
-	h.renderDiscoverSection(c, "Upcoming")
-}
-
-func (h *AnimeHandler) HandleDiscoverTop(c *gin.Context) {
-	h.renderDiscoverSection(c, "Top")
-}
-
-func (h *AnimeHandler) renderDiscoverSection(c *gin.Context, section string) {
-	user, _ := c.Get("User")
-	userID := ""
-	if u, ok := user.(*domain.User); ok {
-		userID = u.ID
-	}
-	data, err := h.svc.GetDiscoverSection(c.Request.Context(), userID, section)
-	if err != nil {
-		return
-	}
-
-	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, data.Animes)
-
-	data.Section = section
-	data.Fragment = "discover_section"
-	data.WatchlistMap = watchlistMap
-	c.HTML(http.StatusOK, "discover.gohtml", data)
-}
-
-func (h *AnimeHandler) HandleBrowse(c *gin.Context) {
-	q := c.Query("q")
-	animeType := c.Query("type")
-	status := c.Query("status")
-	orderBy := c.Query("order_by")
-	sort := c.Query("sort")
-	sfw := c.Query("sfw") != "false"
-
-	var genres []int
-	for _, g := range c.QueryArray("genres") {
-		id, _ := strconv.Atoi(g)
-		if id > 0 {
-			genres = append(genres, id)
-		}
-	}
-
-	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
-	if page < 1 {
-		page = 1
-	}
-
-	res, err := h.svc.SearchAdvanced(c.Request.Context(), q, animeType, status, orderBy, sort, genres, sfw, page, 24)
-	if err != nil {
-	}
-
-	user, _ := c.Get("User")
-	userID := ""
-	if u, ok := user.(*domain.User); ok {
-		userID = u.ID
-	}
-	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, res.Animes)
-
-	if c.GetHeader("HX-Request") == "true" && page > 1 {
-		c.HTML(http.StatusOK, "browse.gohtml", gin.H{
-			"_fragment":    "anime_card_scroll",
-			"Animes":       res.Animes,
-			"NextPage":     page + 1,
-			"HasNextPage":  res.HasNextPage,
-			"Query":        q,
-			"Type":         animeType,
-			"Status":       status,
-			"OrderBy":      orderBy,
-			"Sort":         sort,
-			"Genres":       genres,
-			"SFW":          sfw,
-			"WatchlistMap": watchlistMap,
-		})
-		return
-	}
-
-	genresList, _ := h.svc.GetGenres(c.Request.Context())
-
-	if c.GetHeader("HX-Request") == "true" {
-		c.HTML(http.StatusOK, "browse.gohtml", gin.H{
-			"_fragment":    "browse_content",
-			"CurrentPath":  "/browse",
-			"Query":        q,
-			"Type":         animeType,
-			"Status":       status,
-			"OrderBy":      orderBy,
-			"Sort":         sort,
-			"Genres":       genres,
-			"SFW":          sfw,
-			"GenresList":   genresList,
-			"Animes":       res.Animes,
-			"HasNextPage":  res.HasNextPage,
-			"NextPage":     page + 1,
-			"User":         user,
-			"WatchlistMap": watchlistMap,
-		})
-		return
-	}
-
-	c.HTML(http.StatusOK, "browse.gohtml", gin.H{
-		"CurrentPath":  "/browse",
-		"Query":        q,
-		"Type":         animeType,
-		"Status":       status,
-		"OrderBy":      orderBy,
-		"Sort":         sort,
-		"Genres":       genres,
-		"SFW":          sfw,
-		"GenresList":   genresList,
-		"Animes":       res.Animes,
-		"HasNextPage":  res.HasNextPage,
-		"NextPage":     page + 1,
-		"User":         user,
-		"WatchlistMap": watchlistMap,
-	})
-}
-
-func (h *AnimeHandler) HandleAnimeDetails(c *gin.Context) {
-	id, _ := strconv.Atoi(c.Param("id"))
-	if id <= 0 {
-		c.Status(http.StatusNotFound)
-		return
-	}
-
-	section := c.Query("section")
-	if section != "" && c.GetHeader("HX-Request") == "true" {
-		sectionCtx, cancel := context.WithTimeout(c.Request.Context(), 4*time.Second)
-		defer cancel()
-
-		var data any
-		var tplName string
-		var err error
-		switch section {
-		case "characters":
-			data, err = h.svc.GetCharacters(sectionCtx, id)
-			tplName = "anime_characters"
-		case "recommendations":
-			data, err = h.svc.GetRecommendations(sectionCtx, id)
-			tplName = "anime_recommendations"
-
-		case "statistics":
-			data, err = h.svc.GetStatistics(sectionCtx, id)
-			tplName = "anime_statistics"
-		case "themes":
-			data, err = h.svc.GetThemes(sectionCtx, id)
-			tplName = "anime_themes"
-		}
-
-		if err != nil {
-			log.Printf("failed to fetch section %s: %v", section, err)
-			c.Status(http.StatusNoContent)
-			return
-		}
-
-		c.HTML(http.StatusOK, "anime.gohtml", gin.H{
-			"_fragment": tplName,
-			"Items":     data,
-		})
-		return
-	}
-
-	anime, err := h.svc.GetAnimeByID(c.Request.Context(), id)
-	if err != nil {
-		c.Status(http.StatusNotFound)
-		return
-	}
-
-	user, _ := c.Get("User")
-	status := ""
-	var watchlistIDs []int64
-	ep := 1
-	var cwSeconds float64
-	if u, ok := user.(*domain.User); ok {
-		entry, err := h.watchlistSvc.GetWatchListEntry(c.Request.Context(), u.ID, int64(id))
-		if err == nil {
-			status = entry.Status
-			watchlistIDs = []int64{entry.AnimeID}
-		}
-
-		cwEntry, err := h.watchlistSvc.GetContinueWatchingEntry(c.Request.Context(), u.ID, int64(id))
-		if err == nil && cwEntry.CurrentEpisode.Valid {
-			ep = int(cwEntry.CurrentEpisode.Int64)
-			cwSeconds = cwEntry.CurrentTimeSeconds
-		}
-	}
-
-	c.HTML(http.StatusOK, "anime.gohtml", gin.H{
-		"Anime":                anime,
-		"CurrentPath":          fmt.Sprintf("/anime/%d", id),
-		"User":                 user,
-		"Status":               status,
-		"WatchlistIDs":         watchlistIDs,
-		"ContinueWatchingEp":   ep,
-		"ContinueWatchingTime": cwSeconds,
-	})
-}
-
-func (h *AnimeHandler) HandleHTMLWatchOrder(c *gin.Context) {
-	id, _ := strconv.Atoi(c.Query("animeId"))
-	if id <= 0 {
-		c.Status(http.StatusBadRequest)
-		return
-	}
-
-	user, _ := c.Get("User")
-	userID := ""
-	if u, ok := user.(*domain.User); ok {
-		userID = u.ID
-	}
-
-	relationsCtx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
-	defer cancel()
-
-	relations, err := h.svc.GetRelations(relationsCtx, id)
-	if err != nil {
-		log.Printf("failed to fetch relations for anime %d: %v", id, err)
-		c.Status(http.StatusNoContent)
-		return
-	}
-
-	relationAnimeIDs := make([]int64, 0, len(relations))
-	for _, relation := range relations {
-		if relation.Anime.MalID > 0 {
-			relationAnimeIDs = append(relationAnimeIDs, int64(relation.Anime.MalID))
-		}
-	}
-	watchlistMap := h.watchlistMapForIDs(c.Request.Context(), userID, relationAnimeIDs)
-
-	c.HTML(http.StatusOK, "anime.gohtml", gin.H{
-		"_fragment":    "watch_order",
-		"Relations":    relations,
-		"AnimeID":      id,
-		"WatchlistMap": watchlistMap,
-	})
-}
-
-func (h *AnimeHandler) HandleQuickSearch(c *gin.Context) {
-	query := c.Query("q")
-	if query == "" {
-		c.JSON(http.StatusOK, []any{})
-		return
-	}
-
-	res, err := h.svc.SearchAdvanced(c.Request.Context(), query, "", "", "", "", nil, true, 1, 5)
-	if err != nil {
-		c.JSON(http.StatusOK, []any{})
-		return
-	}
-
-	user, _ := c.Get("User")
-	userID := ""
-	if u, ok := user.(*domain.User); ok {
-		userID = u.ID
-	}
-	watchlistMap := h.watchlistMapForAnimes(c.Request.Context(), userID, res.Animes)
-
-	type quickSearchResult struct {
-		ID          int    `json:"id"`
-		Title       string `json:"title"`
-		Type        string `json:"type"`
-		Year        int    `json:"year"`
-		Image       string `json:"image"`
-		InWatchlist bool   `json:"in_watchlist"`
-	}
-
-	output := make([]quickSearchResult, len(res.Animes))
-	for i, anime := range res.Animes {
-		output[i] = quickSearchResult{
-			ID:          anime.MalID,
-			Title:       anime.DisplayTitle(),
-			Type:        anime.Type,
-			Year:        anime.Year,
-			Image:       anime.ImageURL(),
-			InWatchlist: watchlistMap[int64(anime.MalID)],
-		}
-	}
-	c.JSON(http.StatusOK, output)
-}
-
-type commandPaletteItem struct {
-	ID       string `json:"id"`
-	Type     string `json:"type"`
-	Label    string `json:"label"`
-	Subtitle string `json:"subtitle"`
-	Href     string `json:"href"`
-	Image    string `json:"image,omitempty"`
-	Icon     string `json:"icon,omitempty"`
-}
-
-func (h *AnimeHandler) HandleCommandPalette(c *gin.Context) {
-	user, _ := c.Get("User")
-	u, ok := user.(*domain.User)
-	if !ok {
-		c.JSON(http.StatusUnauthorized, gin.H{"error": "Unauthorized"})
-		return
-	}
-
-	query := strings.TrimSpace(c.Query("q"))
-	items := make([]commandPaletteItem, 0, 12)
-
-	if query != "" {
-		items = append(items, commandPaletteItem{
-			ID:       "search:" + strings.ToLower(query),
-			Type:     "search",
-			Label:    fmt.Sprintf("Search anime for %q", query),
-			Subtitle: "Browse",
-			Href:     "/browse?q=" + url.QueryEscape(query),
-			Icon:     "search",
-		})
-
-		if len(query) >= 2 {
-			items = append(items, h.commandPaletteAnimeResults(c, query)...)
-		}
-
-		items = append(items, h.commandPaletteNavigationItems(query)...)
-		items = append(items, h.commandPaletteContinueItems(c, u.ID, query)...)
-		items = append(items, h.commandPalettePersonalItems(c, u.ID, query)...)
-		c.JSON(http.StatusOK, items)
-		return
-	}
-
-	items = append(items, h.commandPaletteContinueItems(c, u.ID, query)...)
-	items = append(items, h.commandPaletteNavigationItems(query)...)
-	items = append(items, h.commandPalettePersonalItems(c, u.ID, query)...)
-	c.JSON(http.StatusOK, items)
-}
-
-func (h *AnimeHandler) commandPaletteNavigationItems(query string) []commandPaletteItem {
-	all := []commandPaletteItem{
-		{ID: "nav:discover", Type: "navigation", Label: "Go to Discover", Subtitle: "Navigation", Href: "/discover", Icon: "compass"},
-		{ID: "nav:watchlist", Type: "navigation", Label: "Go to Watchlist", Subtitle: "Navigation", Href: "/watchlist", Icon: "bookmark"},
-		{ID: "nav:popular", Type: "navigation", Label: "Browse popular", Subtitle: "Browse", Href: "/browse?order_by=popularity&sort=desc", Icon: "trending"},
-		{ID: "nav:airing", Type: "navigation", Label: "Currently airing", Subtitle: "Browse", Href: "/browse?status=airing&order_by=popularity&sort=desc", Icon: "play"},
-	}
-	if query == "" {
-		return all
-	}
-
-	filtered := make([]commandPaletteItem, 0, len(all))
-	for _, item := range all {
-		if commandPaletteMatches(query, item.Label, item.Subtitle) {
-			filtered = append(filtered, item)
-		}
-	}
-	return filtered
-}
-
-func (h *AnimeHandler) commandPaletteAnimeResults(c *gin.Context, query string) []commandPaletteItem {
-	searchCtx, cancel := context.WithTimeout(c.Request.Context(), 800*time.Millisecond)
-	defer cancel()
-
-	res, err := h.svc.SearchAdvanced(searchCtx, query, "", "", "", "", nil, true, 1, 5)
-	if err != nil {
-		return nil
-	}
-
-	items := make([]commandPaletteItem, 0, len(res.Animes))
-	for _, anime := range res.Animes {
-		items = append(items, commandPaletteItem{
-			ID:       fmt.Sprintf("anime:%d", anime.MalID),
-			Type:     "anime",
-			Label:    anime.DisplayTitle(),
-			Subtitle: strings.TrimSpace("Anime " + anime.Type),
-			Href:     fmt.Sprintf("/anime/%d", anime.MalID),
-			Image:    anime.ImageURL(),
-		})
-	}
-	return items
-}
-
-func (h *AnimeHandler) commandPalettePersonalItems(c *gin.Context, userID string, query string) []commandPaletteItem {
-	items := make([]commandPaletteItem, 0, 5)
-
-	watchlist, err := h.watchlistSvc.GetCommandPaletteWatchlist(c.Request.Context(), userID, query, 5)
-	if err != nil {
-		return items
-	}
-
-	for _, entry := range watchlist {
-		title := watchlistTitle(entry)
-		items = append(items, commandPaletteItem{
-			ID:       fmt.Sprintf("watchlist:%d", entry.AnimeID),
-			Type:     "watchlist",
-			Label:    title,
-			Subtitle: watchlistStatusLabel(entry.Status),
-			Href:     fmt.Sprintf("/anime/%d", entry.AnimeID),
-			Image:    entry.ImageUrl,
-		})
-		if len(items) >= 5 {
-			return items
-		}
-	}
-
-	return items
-}
-
-func (h *AnimeHandler) commandPaletteContinueItems(c *gin.Context, userID string, query string) []commandPaletteItem {
-	items := make([]commandPaletteItem, 0, 5)
-
-	rows, err := h.watchlistSvc.GetCommandPaletteContinueWatching(c.Request.Context(), userID, query, 5)
-	if err != nil {
-		return items
-	}
-
-	for _, row := range rows {
-		title := continueWatchingTitle(row)
-		episode := ""
-		href := fmt.Sprintf("/anime/%d/watch", row.AnimeID)
-		if row.CurrentEpisode.Valid {
-			episode = fmt.Sprintf(" episode %d", row.CurrentEpisode.Int64)
-			href = fmt.Sprintf("%s?ep=%d", href, row.CurrentEpisode.Int64)
-		}
-		items = append(items, commandPaletteItem{
-			ID:       fmt.Sprintf("continue:%d", row.AnimeID),
-			Type:     "continue",
-			Label:    "Continue watching " + title,
-			Subtitle: "Resume" + episode,
-			Href:     href,
-			Image:    row.ImageUrl,
-		})
-		if len(items) >= 5 {
-			return items
-		}
-	}
-
-	return items
-}
-
-func commandPaletteMatches(query string, values ...string) bool {
-	needle := strings.ToLower(strings.TrimSpace(query))
-	for _, value := range values {
-		if strings.Contains(strings.ToLower(value), needle) {
-			return true
-		}
-	}
-	return false
-}
-
-func continueWatchingTitle(row db.GetContinueWatchingEntriesRow) string {
-	if row.TitleEnglish.Valid && row.TitleEnglish.String != "" {
-		return row.TitleEnglish.String
-	}
-	return row.TitleOriginal
-}
-
-func watchlistTitle(row domain.UserWatchListRow) string {
-	if row.TitleEnglish.Valid && row.TitleEnglish.String != "" {
-		return row.TitleEnglish.String
-	}
-	return row.TitleOriginal
-}
-
-func watchlistStatusLabel(status string) string {
-	switch status {
-	case "watching":
-		return "Watching"
-	case "plan_to_watch":
-		return "Plan to Watch"
-	default:
-		return "Watchlist"
-	}
-}
-
-func (h *AnimeHandler) HandleRandomAnime(c *gin.Context) {
-	ctx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
-	defer cancel()
-
-	anime, err := h.svc.GetRandomAnime(ctx)
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to fetch random anime"})
-		return
-	}
-	if anime.MalID == 0 {
-		c.JSON(http.StatusBadGateway, gin.H{"error": "Random anime unavailable"})
-		return
-	}
-
-	user, _ := c.Get("User")
-	inWatchlist := false
-	if u, ok := user.(*domain.User); ok {
-		watchlistMap := h.watchlistMapForIDs(c.Request.Context(), u.ID, []int64{int64(anime.MalID)})
-		inWatchlist = watchlistMap[int64(anime.MalID)]
-	}
-
-	c.JSON(http.StatusOK, gin.H{
-		"data":         anime,
-		"in_watchlist": inWatchlist,
-	})
-}
-
-func (h *AnimeHandler) HandleAnimeReviews(c *gin.Context) {
-	id, _ := strconv.Atoi(c.Param("id"))
-	if id <= 0 {
-		c.Status(http.StatusNotFound)
-		return
-	}
-
-	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
-	if page < 1 {
-		page = 1
-	}
-
-	reviews, hasNextPage, err := h.svc.GetReviews(c.Request.Context(), id, page)
-	if err != nil {
-		c.Status(http.StatusInternalServerError)
-		return
-	}
-
-	user, _ := c.Get("User")
-
-	if c.GetHeader("HX-Request") == "true" && page > 1 {
-		c.HTML(http.StatusOK, "reviews.gohtml", gin.H{
-			"_fragment":   "review_cards",
-			"Reviews":     reviews,
-			"NextPage":    page + 1,
-			"HasNextPage": hasNextPage,
-			"AnimeID":     id,
-		})
-		return
-	}
-
-	c.HTML(http.StatusOK, "reviews.gohtml", gin.H{
-		"CurrentPath": fmt.Sprintf("/anime/%d/reviews", id),
-		"Reviews":     reviews,
-		"NextPage":    page + 1,
-		"HasNextPage": hasNextPage,
-		"AnimeID":     id,
-		"User":        user,
-	})
-}

internal/anime/handler_test.go

@@ -0,0 +1,124 @@
+package anime
+
+import (
+	"context"
+	"errors"
+	"mal/integrations/jikan"
+	"mal/internal/domain"
+	"testing"
+)
+
+type stubEpisodeService struct {
+	episodes domain.CanonicalEpisodeList
+	err      error
+	forced   bool
+}
+
+func (s *stubEpisodeService) GetCanonicalEpisodes(ctx context.Context, anime domain.Anime, forceRefresh bool) (domain.CanonicalEpisodeList, error) {
+	s.forced = forceRefresh
+	if s.err != nil {
+		return domain.CanonicalEpisodeList{}, s.err
+	}
+	return s.episodes, nil
+}
+
+func (s *stubEpisodeService) RefreshTrackedDue(ctx context.Context, limit int) error {
+	return nil
+}
+
+func TestAnimeAudioAvailabilityLabel(t *testing.T) {
+	tests := []struct {
+		name     string
+		episodes []domain.CanonicalEpisode
+		want     string
+	}{
+		{
+			name: "dub availability",
+			episodes: []domain.CanonicalEpisode{
+				{Number: 1, HasSub: true, HasDub: true},
+			},
+			want: "Dub available",
+		},
+		{
+			name: "subtitled availability",
+			episodes: []domain.CanonicalEpisode{
+				{Number: 1, HasSub: true, SubOnly: true},
+			},
+			want: "Subtitled only",
+		},
+		{
+			name:     "unknown availability",
+			episodes: []domain.CanonicalEpisode{{Number: 1}},
+			want:     "",
+		},
+		{
+			name:     "no episodes",
+			episodes: []domain.CanonicalEpisode{},
+			want:     "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := animeAudioAvailabilityLabel(tt.episodes)
+			if got != tt.want {
+				t.Fatalf("animeAudioAvailabilityLabel() = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestAnimeAudioAvailabilityRequiresAllAnimeSource(t *testing.T) {
+	tests := []struct {
+		name   string
+		source string
+		err    error
+		want   string
+	}{
+		{
+			name:   "allanime source",
+			source: "AllAnime",
+			want:   "Dub available",
+		},
+		{
+			name:   "jikan fallback source",
+			source: "jikan_fallback",
+			want:   "",
+		},
+		{
+			name:   "legacy source",
+			source: "legacy_disabled",
+			want:   "",
+		},
+		{
+			name: "provider error",
+			err:  errors.New("provider unavailable"),
+			want: "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			episodeSvc := &stubEpisodeService{
+				episodes: domain.CanonicalEpisodeList{
+					Source: tt.source,
+					Episodes: []domain.CanonicalEpisode{
+						{Number: 1, HasSub: true, HasDub: true},
+					},
+				},
+				err: tt.err,
+			}
+			handler := NewAnimeHandler(nil, nil, episodeSvc)
+
+			got := handler.animeAudioAvailability(context.Background(), domain.Anime{
+				Anime: jikan.Anime{MalID: 52991},
+			})
+			if got != tt.want {
+				t.Fatalf("animeAudioAvailability() = %q, want %q", got, tt.want)
+			}
+			if !episodeSvc.forced {
+				t.Fatal("animeAudioAvailability() did not force provider refresh")
+			}
+		})
+	}
+}

internal/anime/module.go

@@ -1,9 +1,7 @@
 package anime
 
 import (
-	"mal/internal/anime/handler"
-	"mal/internal/anime/repository"
-	"mal/internal/anime/service"
+	"mal/internal/domain"
 	"mal/internal/server"
 
 	"go.uber.org/fx"
@@ -11,12 +9,20 @@ import (
 
 var Module = fx.Options(
 	fx.Provide(
-		repository.NewAnimeRepository,
-		service.NewAnimeService,
-		handler.NewAnimeHandler,
+		NewAnimeRepository,
+		fx.Annotate(
+			NewAnimeService,
+			fx.As(new(Service)),
+			fx.As(new(domain.AnimeCatalogService)),
+			fx.As(new(domain.AnimeDiscoverService)),
+			fx.As(new(domain.AnimeSearchService)),
+			fx.As(new(domain.AnimeDetailsService)),
+			fx.As(new(domain.AnimePlaybackService)),
+		),
+		NewAnimeHandler,
 	),
 	fx.Provide(
-		server.AsRouteRegister(func(h *handler.AnimeHandler) server.RouteRegister {
+		server.AsRouteRegister(func(h *AnimeHandler) server.RouteRegister {
 			return h
 		}),
 	),

internal/anime/recommendations.go

@@ -0,0 +1,503 @@
+package anime
+
+import (
+	"mal/integrations/jikan"
+	"mal/internal/db"
+	"mal/internal/domain"
+	"math"
+	"slices"
+	"sort"
+	"strings"
+	"time"
+)
+
+const (
+	forYouMaxSeeds               = 8
+	forYouMaxRecommendations     = 10
+	forYouCandidateFetchLimit    = 60
+	forYouResultLimit            = 18
+	forYouFullResultLimit        = 60
+	forYouProfileSearchLimit     = 8
+	forYouProfileGenreSearches   = 2
+	forYouProfileThemeSearches   = 2
+	forYouCollaborativeWeight    = 1.4
+	forYouProfileSearchWeight    = 0.8
+	forYouSeedRecencyWindow      = 180 * 24 * time.Hour
+	forYouFreshReleaseWindow     = 540 * 24 * time.Hour
+	forYouGenreMatchWeight       = 1.8
+	forYouThemeMatchWeight       = 1.0
+	forYouStudioMatchWeight      = 0.7
+	forYouDemographicMatchWeight = 0.9
+	forYouRecentDiversityWindow  = 3
+	forYouGenreDiversityPenalty  = 1.7
+	forYouThemeDiversityPenalty  = 1.2
+	forYouDemoDiversityPenalty   = 1.0
+	forYouStudioDiversityPenalty = 0.7
+)
+
+type recommendationSeed struct {
+	animeID int
+	weight  float64
+}
+
+type weightedEntity struct {
+	id     int
+	weight float64
+}
+
+type profileSearchQuery struct {
+	genreIDs []int
+	studioID int
+	weight   float64
+}
+
+type recommendationCandidate struct {
+	anime              jikan.Anime
+	score              float64
+	genreMatches       int
+	themeMatches       int
+	studioMatches      int
+	demographicMatches int
+}
+
+type userTasteProfile struct {
+	genres        map[int]float64
+	themes        map[int]float64
+	studios       map[int]float64
+	demographics  map[int]float64
+	prefersAiring bool
+	prefersRecent bool
+}
+
+func buildRecommendationSeeds(
+	now time.Time,
+	watchlist []db.GetUserWatchListRow,
+) []recommendationSeed {
+	seeds := make([]recommendationSeed, 0, min(len(watchlist), forYouMaxSeeds))
+
+	for _, entry := range watchlist {
+		weight := recommendationEntryWeight(now, entry)
+		if weight <= 0 || entry.AnimeID <= 0 {
+			continue
+		}
+
+		seeds = append(seeds, recommendationSeed{
+			animeID: int(entry.AnimeID),
+			weight:  weight,
+		})
+		if len(seeds) >= forYouMaxSeeds {
+			break
+		}
+	}
+
+	return seeds
+}
+
+func recommendationEntryWeight(now time.Time, entry db.GetUserWatchListRow) float64 {
+	status := strings.TrimSpace(entry.Status)
+
+	var statusWeight float64
+	switch status {
+	case "completed":
+		statusWeight = 1.0
+	case "watching":
+		statusWeight = 0.9
+	case "plan_to_watch":
+		statusWeight = 0.35
+	default:
+		return 0
+	}
+
+	recencyWeight := 1.0
+	if !entry.UpdatedAt.IsZero() {
+		age := now.Sub(entry.UpdatedAt)
+		if age > 0 {
+			recencyWeight = math.Max(0.35, 1-(age.Hours()/forYouSeedRecencyWindow.Hours()))
+		}
+	}
+
+	progressWeight := 0.6
+	if entry.CurrentEpisode.Valid && entry.CurrentEpisode.Int64 > 0 {
+		progressWeight = min(1.0, 0.6+(0.08*float64(entry.CurrentEpisode.Int64)))
+	}
+
+	return statusWeight * recencyWeight * progressWeight
+}
+
+func buildTasteProfile(
+	now time.Time,
+	seeds []recommendationSeed,
+	seedAnimes []jikan.Anime,
+) userTasteProfile {
+	profile := userTasteProfile{
+		genres:       make(map[int]float64),
+		themes:       make(map[int]float64),
+		studios:      make(map[int]float64),
+		demographics: make(map[int]float64),
+	}
+
+	var totalWeight float64
+	var airingWeight float64
+	var recentWeight float64
+
+	for i, anime := range seedAnimes {
+		seedWeight := 1.0
+		if i < len(seeds) && seeds[i].weight > 0 {
+			seedWeight = seeds[i].weight
+		}
+
+		addEntityWeights(profile.genres, anime.Genres, seedWeight)
+		addEntityWeights(profile.themes, anime.Themes, seedWeight*0.7)
+		addEntityWeights(profile.studios, anime.Studios, seedWeight*0.5)
+		addEntityWeights(profile.demographics, anime.Demographics, seedWeight*0.7)
+
+		if anime.Airing {
+			airingWeight += seedWeight
+		}
+		if anime.Year > 0 && now.Year()-anime.Year <= 4 {
+			recentWeight += seedWeight
+		}
+		totalWeight += seedWeight
+	}
+
+	if totalWeight > 0 {
+		profile.prefersAiring = airingWeight/totalWeight >= 0.5
+		profile.prefersRecent = recentWeight/totalWeight >= 0.5
+	}
+
+	return profile
+}
+
+func addEntityWeights(target map[int]float64, entities []jikan.NamedEntity, weight float64) {
+	for _, entity := range entities {
+		if entity.MalID <= 0 {
+			continue
+		}
+		target[entity.MalID] += weight
+	}
+}
+
+func buildProfileSearchQueries(profile userTasteProfile) []profileSearchQuery {
+	queries := make([]profileSearchQuery, 0, 6)
+
+	for _, entity := range strongestWeightedEntities(profile.genres, forYouProfileGenreSearches) {
+		queries = append(queries, profileSearchQuery{
+			genreIDs: []int{entity.id},
+			weight:   entity.weight,
+		})
+	}
+
+	for _, entity := range strongestWeightedEntities(profile.themes, forYouProfileThemeSearches) {
+		queries = append(queries, profileSearchQuery{
+			genreIDs: []int{entity.id},
+			weight:   entity.weight * 0.8,
+		})
+	}
+
+	for _, entity := range strongestWeightedEntities(profile.demographics, 1) {
+		queries = append(queries, profileSearchQuery{
+			genreIDs: []int{entity.id},
+			weight:   entity.weight * 0.8,
+		})
+	}
+
+	for _, entity := range strongestWeightedEntities(profile.studios, 1) {
+		queries = append(queries, profileSearchQuery{
+			studioID: entity.id,
+			weight:   entity.weight * 0.7,
+		})
+	}
+
+	return queries
+}
+
+func strongestWeightedEntities(weights map[int]float64, limit int) []weightedEntity {
+	if limit <= 0 || len(weights) == 0 {
+		return []weightedEntity{}
+	}
+
+	items := make([]weightedEntity, 0, len(weights))
+	for id, weight := range weights {
+		if id <= 0 || weight <= 0 {
+			continue
+		}
+		items = append(items, weightedEntity{id: id, weight: weight})
+	}
+
+	sort.Slice(items, func(i, j int) bool {
+		if items[i].weight == items[j].weight {
+			return items[i].id < items[j].id
+		}
+		return items[i].weight > items[j].weight
+	})
+
+	if len(items) > limit {
+		return items[:limit]
+	}
+	return items
+}
+
+func profileSearchRankWeight(rank int) float64 {
+	return math.Max(0.35, 1-(float64(rank)*0.08))
+}
+
+func rankedCandidateRetrievalScore(collaborativeScore float64, profileSearchScore float64) float64 {
+	return (math.Log1p(collaborativeScore) * forYouCollaborativeWeight) +
+		(profileSearchScore * forYouProfileSearchWeight)
+}
+
+func hasTasteMetadata(anime jikan.Anime) bool {
+	return len(anime.Genres) > 0 ||
+		len(anime.Themes) > 0 ||
+		len(anime.Studios) > 0 ||
+		len(anime.Demographics) > 0
+}
+
+func scoreRecommendationCandidate(
+	now time.Time,
+	profile userTasteProfile,
+	candidate jikan.Anime,
+	collaborativeScore float64,
+	profileSearchScore float64,
+) recommendationCandidate {
+	genreMatches, genreScore := weightedEntityMatch(profile.genres, candidate.Genres)
+	themeMatches, themeScore := weightedEntityMatch(profile.themes, candidate.Themes)
+	studioMatches, studioScore := weightedEntityMatch(profile.studios, candidate.Studios)
+	demographicMatches, demographicScore := weightedEntityMatch(profile.demographics, candidate.Demographics)
+
+	score := rankedCandidateRetrievalScore(collaborativeScore, profileSearchScore)
+	score += genreScore * forYouGenreMatchWeight
+	score += themeScore * forYouThemeMatchWeight
+	score += studioScore * forYouStudioMatchWeight
+	score += demographicScore * forYouDemographicMatchWeight
+
+	if candidate.Score > 0 {
+		score += min(candidate.Score/10.0, 1.0)
+	}
+	if candidate.Popularity > 0 {
+		score += 1.0 / math.Log(float64(candidate.Popularity)+8)
+	}
+	if profile.prefersAiring && candidate.Airing {
+		score += 0.5
+	}
+	if profile.prefersRecent && candidate.Year > 0 && now.Year()-candidate.Year <= 4 {
+		score += 0.45
+	}
+	if candidate.Year > 0 && now.Year()-candidate.Year > 15 {
+		score -= 0.2
+	}
+	if candidate.Status == "Not yet aired" {
+		score -= 0.35
+	}
+	if candidate.Aired.From != "" {
+		if airedAt, err := time.Parse(time.RFC3339, candidate.Aired.From); err == nil {
+			if now.Sub(airedAt) <= forYouFreshReleaseWindow {
+				score += 0.3
+			}
+		}
+	}
+
+	return recommendationCandidate{
+		anime:              candidate,
+		score:              score,
+		genreMatches:       genreMatches,
+		themeMatches:       themeMatches,
+		studioMatches:      studioMatches,
+		demographicMatches: demographicMatches,
+	}
+}
+
+func weightedEntityMatch(weights map[int]float64, entities []jikan.NamedEntity) (int, float64) {
+	var (
+		matches int
+		score   float64
+	)
+
+	for _, entity := range entities {
+		weight, ok := weights[entity.MalID]
+		if !ok {
+			continue
+		}
+		matches++
+		score += weight
+	}
+
+	return matches, score
+}
+
+func rerankRecommendationCandidates(candidates []recommendationCandidate, limit int) []domain.Anime {
+	selected := make([]domain.Anime, 0, min(limit, len(candidates)))
+	remaining := slices.Clone(candidates)
+	seenFeatures := newDiversityFeatureCounts()
+	recentFeatures := make([]diversityFeatureSet, 0, forYouRecentDiversityWindow)
+
+	for len(selected) < limit && len(remaining) > 0 {
+		bestIndex := bestDiverseCandidateIndex(remaining, seenFeatures, recentFeatures)
+		candidate := remaining[bestIndex]
+		remaining = slices.Delete(remaining, bestIndex, bestIndex+1)
+
+		if slices.ContainsFunc(selected, func(anime domain.Anime) bool {
+			return anime.MalID == candidate.anime.MalID
+		}) {
+			continue
+		}
+
+		selected = append(selected, domain.Anime{Anime: candidate.anime})
+		features := diversityFeatures(candidate.anime)
+		seenFeatures.add(features)
+		recentFeatures = append(recentFeatures, features)
+		if len(recentFeatures) > forYouRecentDiversityWindow {
+			recentFeatures = recentFeatures[1:]
+		}
+	}
+
+	return selected
+}
+
+type diversityFeatureSet struct {
+	genres       map[int]struct{}
+	themes       map[int]struct{}
+	demographics map[int]struct{}
+	studios      map[int]struct{}
+}
+
+type diversityFeatureCounts struct {
+	genres       map[int]int
+	themes       map[int]int
+	demographics map[int]int
+	studios      map[int]int
+}
+
+func newDiversityFeatureCounts() diversityFeatureCounts {
+	return diversityFeatureCounts{
+		genres:       make(map[int]int),
+		themes:       make(map[int]int),
+		demographics: make(map[int]int),
+		studios:      make(map[int]int),
+	}
+}
+
+func (counts diversityFeatureCounts) add(features diversityFeatureSet) {
+	addDiversityCounts(counts.genres, features.genres)
+	addDiversityCounts(counts.themes, features.themes)
+	addDiversityCounts(counts.demographics, features.demographics)
+	addDiversityCounts(counts.studios, features.studios)
+}
+
+func addDiversityCounts(target map[int]int, features map[int]struct{}) {
+	for id := range features {
+		target[id]++
+	}
+}
+
+func bestDiverseCandidateIndex(
+	candidates []recommendationCandidate,
+	seen diversityFeatureCounts,
+	recent []diversityFeatureSet,
+) int {
+	bestIndex := 0
+	bestScore := math.Inf(-1)
+
+	for i, candidate := range candidates {
+		score := candidate.score - diversityPenalty(diversityFeatures(candidate.anime), seen, recent)
+		if score == bestScore {
+			if candidate.score <= candidates[bestIndex].score {
+				continue
+			}
+		}
+		if score > bestScore {
+			bestScore = score
+			bestIndex = i
+		}
+	}
+
+	return bestIndex
+}
+
+func diversityFeatures(anime jikan.Anime) diversityFeatureSet {
+	return diversityFeatureSet{
+		genres:       entityIDSet(anime.Genres),
+		themes:       entityIDSet(anime.Themes),
+		demographics: entityIDSet(anime.Demographics),
+		studios:      entityIDSet(anime.Studios),
+	}
+}
+
+func entityIDSet(entities []jikan.NamedEntity) map[int]struct{} {
+	ids := make(map[int]struct{}, len(entities))
+	for _, entity := range entities {
+		if entity.MalID <= 0 {
+			continue
+		}
+		ids[entity.MalID] = struct{}{}
+	}
+	return ids
+}
+
+func diversityPenalty(
+	features diversityFeatureSet,
+	seen diversityFeatureCounts,
+	recent []diversityFeatureSet,
+) float64 {
+	penalty := 0.0
+	penalty += repeatedFeaturePenalty(features.genres, seen.genres, recentGenreCounts(recent), forYouGenreDiversityPenalty)
+	penalty += repeatedFeaturePenalty(features.themes, seen.themes, recentThemeCounts(recent), forYouThemeDiversityPenalty)
+	penalty += repeatedFeaturePenalty(
+		features.demographics,
+		seen.demographics,
+		recentDemographicCounts(recent),
+		forYouDemoDiversityPenalty,
+	)
+	penalty += repeatedFeaturePenalty(features.studios, seen.studios, recentStudioCounts(recent), forYouStudioDiversityPenalty)
+
+	return penalty
+}
+
+func repeatedFeaturePenalty(
+	features map[int]struct{},
+	seen map[int]int,
+	recent map[int]int,
+	weight float64,
+) float64 {
+	total := 0.0
+	for id := range features {
+		total += float64(seen[id]) * weight * 0.35
+		total += float64(recent[id]) * weight
+	}
+	return total
+}
+
+func recentGenreCounts(recent []diversityFeatureSet) map[int]int {
+	return recentFeatureCounts(recent, func(features diversityFeatureSet) map[int]struct{} {
+		return features.genres
+	})
+}
+
+func recentThemeCounts(recent []diversityFeatureSet) map[int]int {
+	return recentFeatureCounts(recent, func(features diversityFeatureSet) map[int]struct{} {
+		return features.themes
+	})
+}
+
+func recentDemographicCounts(recent []diversityFeatureSet) map[int]int {
+	return recentFeatureCounts(recent, func(features diversityFeatureSet) map[int]struct{} {
+		return features.demographics
+	})
+}
+
+func recentStudioCounts(recent []diversityFeatureSet) map[int]int {
+	return recentFeatureCounts(recent, func(features diversityFeatureSet) map[int]struct{} {
+		return features.studios
+	})
+}
+
+func recentFeatureCounts(
+	recent []diversityFeatureSet,
+	selectFeatures func(diversityFeatureSet) map[int]struct{},
+) map[int]int {
+	counts := make(map[int]int)
+	for _, features := range recent {
+		addDiversityCounts(counts, selectFeatures(features))
+	}
+	return counts
+}

internal/anime/recommendations_test.go

@@ -0,0 +1,226 @@
+package anime
+
+import (
+	"database/sql"
+	"mal/integrations/jikan"
+	"mal/internal/db"
+	"mal/internal/domain"
+	"testing"
+	"time"
+)
+
+func TestRecommendationEntryWeightPrioritizesCommittedRecentHistory(t *testing.T) {
+	now := time.Date(2026, time.June, 4, 12, 0, 0, 0, time.UTC)
+
+	completed := recommendationEntryWeight(now, db.GetUserWatchListRow{
+		Status:         "completed",
+		UpdatedAt:      now.Add(-24 * time.Hour),
+		CurrentEpisode: sql.NullInt64{Int64: 12, Valid: true},
+	})
+	planned := recommendationEntryWeight(now, db.GetUserWatchListRow{
+		Status:    "plan_to_watch",
+		UpdatedAt: now.Add(-24 * time.Hour),
+	})
+
+	if completed <= planned {
+		t.Fatalf("expected completed history to outrank planned history, got completed=%f planned=%f", completed, planned)
+	}
+}
+
+func TestBuildRecommendationSeedsFiltersUnsupportedStatuses(t *testing.T) {
+	now := time.Date(2026, time.June, 4, 12, 0, 0, 0, time.UTC)
+
+	seeds := buildRecommendationSeeds(now, []db.GetUserWatchListRow{
+		{AnimeID: 1, Status: "dropped", UpdatedAt: now},
+		{AnimeID: 2, Status: "watching", UpdatedAt: now},
+		{AnimeID: 3, Status: "completed", UpdatedAt: now},
+	})
+
+	if len(seeds) != 2 {
+		t.Fatalf("expected 2 valid seeds, got %d", len(seeds))
+	}
+	if seeds[0].animeID != 2 || seeds[1].animeID != 3 {
+		t.Fatalf("unexpected seed ordering: %+v", seeds)
+	}
+}
+
+func TestScoreRecommendationCandidateRewardsProfileOverlap(t *testing.T) {
+	now := time.Date(2026, time.June, 4, 12, 0, 0, 0, time.UTC)
+	profile := userTasteProfile{
+		genres: map[int]float64{
+			1: 2.0,
+		},
+		themes:       map[int]float64{},
+		studios:      map[int]float64{},
+		demographics: map[int]float64{},
+	}
+
+	matching := scoreRecommendationCandidate(now, profile, jikan.Anime{
+		MalID:      10,
+		Genres:     []jikan.NamedEntity{{MalID: 1, Name: "Action"}},
+		Popularity: 100,
+		Score:      8.0,
+	}, 5.0, 0)
+	nonMatching := scoreRecommendationCandidate(now, profile, jikan.Anime{
+		MalID:      11,
+		Genres:     []jikan.NamedEntity{{MalID: 2, Name: "Drama"}},
+		Popularity: 100,
+		Score:      8.0,
+	}, 5.0, 0)
+
+	if matching.score <= nonMatching.score {
+		t.Fatalf("expected matching candidate to score higher, got matching=%f nonMatching=%f", matching.score, nonMatching.score)
+	}
+}
+
+func TestBuildTasteProfileUsesSeedWeights(t *testing.T) {
+	now := time.Date(2026, time.June, 4, 12, 0, 0, 0, time.UTC)
+
+	profile := buildTasteProfile(
+		now,
+		[]recommendationSeed{
+			{animeID: 1, weight: 2.0},
+			{animeID: 2, weight: 0.5},
+		},
+		[]jikan.Anime{
+			{
+				MalID:        1,
+				Airing:       true,
+				Year:         2026,
+				Genres:       []jikan.NamedEntity{{MalID: 1, Name: "Action"}},
+				Themes:       []jikan.NamedEntity{{MalID: 10, Name: "Team Sports"}},
+				Studios:      []jikan.NamedEntity{{MalID: 20, Name: "Production I.G"}},
+				Demographics: []jikan.NamedEntity{{MalID: 30, Name: "Shounen"}},
+			},
+			{
+				MalID:        2,
+				Year:         2001,
+				Genres:       []jikan.NamedEntity{{MalID: 2, Name: "Drama"}},
+				Themes:       []jikan.NamedEntity{{MalID: 11, Name: "School"}},
+				Studios:      []jikan.NamedEntity{{MalID: 21, Name: "Madhouse"}},
+				Demographics: []jikan.NamedEntity{{MalID: 31, Name: "Seinen"}},
+			},
+		},
+	)
+
+	if profile.genres[1] <= profile.genres[2] {
+		t.Fatalf("expected stronger seed genre to carry more weight, got profile=%+v", profile.genres)
+	}
+	if !profile.prefersAiring {
+		t.Fatal("expected weighted profile to prefer airing anime")
+	}
+	if !profile.prefersRecent {
+		t.Fatal("expected weighted profile to prefer recent anime")
+	}
+}
+
+func TestBuildProfileSearchQueriesIncludesTasteSignals(t *testing.T) {
+	profile := userTasteProfile{
+		genres: map[int]float64{
+			1: 2.0,
+			2: 1.5,
+			3: 0.2,
+		},
+		themes: map[int]float64{
+			10: 1.4,
+		},
+		studios: map[int]float64{
+			20: 1.0,
+		},
+		demographics: map[int]float64{
+			30: 1.2,
+		},
+	}
+
+	queries := buildProfileSearchQueries(profile)
+
+	if !hasGenreSearchQuery(queries, 1) {
+		t.Fatalf("expected strongest genre query, got %+v", queries)
+	}
+	if !hasGenreSearchQuery(queries, 10) {
+		t.Fatalf("expected theme query, got %+v", queries)
+	}
+	if !hasGenreSearchQuery(queries, 30) {
+		t.Fatalf("expected demographic query, got %+v", queries)
+	}
+	if !hasStudioSearchQuery(queries, 20) {
+		t.Fatalf("expected studio query, got %+v", queries)
+	}
+}
+
+func TestRerankRecommendationCandidatesSpreadsRepeatedGenres(t *testing.T) {
+	const sportsGenreID = 30
+
+	candidates := []recommendationCandidate{
+		{anime: testRecommendationAnime(1, sportsGenreID), score: 10},
+		{anime: testRecommendationAnime(2, sportsGenreID), score: 9.9},
+		{anime: testRecommendationAnime(3, sportsGenreID), score: 9.8},
+		{anime: testRecommendationAnime(4, sportsGenreID), score: 9.7},
+		{anime: testRecommendationAnime(5, sportsGenreID), score: 9.6},
+		{anime: testRecommendationAnime(6, 1), score: 9.5},
+		{anime: testRecommendationAnime(7, 2), score: 9.4},
+		{anime: testRecommendationAnime(8, 3), score: 9.3},
+	}
+
+	reranked := rerankRecommendationCandidates(candidates, 8)
+	if len(reranked) < 5 {
+		t.Fatalf("expected enough reranked candidates, got %d", len(reranked))
+	}
+
+	for i := 0; i <= len(reranked)-5; i++ {
+		if allHaveGenre(reranked[i:i+5], sportsGenreID) {
+			t.Fatalf("expected reranker to avoid five sports anime in a row, got %+v", animeIDs(reranked))
+		}
+	}
+}
+
+func testRecommendationAnime(id int, genreID int) jikan.Anime {
+	return jikan.Anime{
+		MalID:  id,
+		Genres: []jikan.NamedEntity{{MalID: genreID, Name: "Genre"}},
+	}
+}
+
+func allHaveGenre(animes []domain.Anime, genreID int) bool {
+	for _, anime := range animes {
+		hasGenre := false
+		for _, genre := range anime.Genres {
+			if genre.MalID == genreID {
+				hasGenre = true
+				break
+			}
+		}
+		if !hasGenre {
+			return false
+		}
+	}
+	return true
+}
+
+func animeIDs(animes []domain.Anime) []int {
+	ids := make([]int, 0, len(animes))
+	for _, anime := range animes {
+		ids = append(ids, anime.MalID)
+	}
+	return ids
+}
+
+func hasGenreSearchQuery(queries []profileSearchQuery, genreID int) bool {
+	for _, query := range queries {
+		for _, id := range query.genreIDs {
+			if id == genreID {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func hasStudioSearchQuery(queries []profileSearchQuery, studioID int) bool {
+	for _, query := range queries {
+		if query.studioID == studioID {
+			return true
+		}
+	}
+	return false
+}

internal/anime/repository.go

@@ -1,4 +1,4 @@
-package repository
+package anime
 
 import (
 	"context"

internal/anime/schedule.go

@@ -0,0 +1,121 @@
+package anime
+
+import (
+	"context"
+	"fmt"
+	"mal/integrations/animeschedule"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+type cachedWeekSchedule struct {
+	fetchedAt time.Time
+	value     animeschedule.WeekSchedule
+}
+
+func parseYearWeek(c *gin.Context) (int, int) {
+	year, _ := strconv.Atoi(c.Query("year"))
+	week, _ := strconv.Atoi(c.Query("week"))
+	if year <= 0 || week <= 0 {
+		now := time.Now()
+		y, w := now.ISOWeek()
+		if year <= 0 {
+			year = y
+		}
+		if week <= 0 {
+			week = w
+		}
+	}
+	return year, week
+}
+
+func scheduleTimezone(c *gin.Context) string {
+	timezone := strings.TrimSpace(c.Query("timezone"))
+	if timezone == "" {
+		return "UTC"
+	}
+	return timezone
+}
+
+func (h *AnimeHandler) getCachedAnimeScheduleWeek(ctx context.Context, year int, week int, timezone string) (animeschedule.WeekSchedule, error) {
+	cacheKey := fmt.Sprintf("%d-%02d-%s", year, week, timezone)
+	const ttl = 10 * time.Minute
+
+	h.scheduleCacheMu.Lock()
+	cached, ok := h.scheduleCache[cacheKey]
+	h.scheduleCacheMu.Unlock()
+
+	if ok && time.Since(cached.fetchedAt) < ttl {
+		return cached.value, nil
+	}
+
+	value, err := animeschedule.FetchWeek(ctx, nil, year, week, timezone)
+	if err != nil {
+		return animeschedule.WeekSchedule{}, err
+	}
+
+	h.scheduleCacheMu.Lock()
+	h.scheduleCache[cacheKey] = cachedWeekSchedule{fetchedAt: time.Now(), value: value}
+	h.scheduleCacheMu.Unlock()
+
+	return value, nil
+}
+
+type scheduleDayView struct {
+	DateLabel    string
+	WeekdayLabel string
+	Entries      []animeschedule.Entry
+}
+
+func buildScheduleDays(schedule animeschedule.WeekSchedule, year int, week int) []scheduleDayView {
+	start := isoWeekStartMonday(year, week)
+	order := []time.Weekday{time.Monday, time.Tuesday, time.Wednesday, time.Thursday, time.Friday, time.Saturday, time.Sunday}
+	out := make([]scheduleDayView, 0, 7)
+	for i, wd := range order {
+		date := start.AddDate(0, 0, i)
+		entries := schedule.Days[wd]
+		sort.SliceStable(entries, func(i, j int) bool {
+			if !entries[i].AirsAt.IsZero() && !entries[j].AirsAt.IsZero() {
+				return entries[i].AirsAt.Before(entries[j].AirsAt)
+			}
+			return localTimeMinutes(entries[i].LocalTime) < localTimeMinutes(entries[j].LocalTime)
+		})
+		out = append(out, scheduleDayView{
+			DateLabel:    strings.ToUpper(date.Format("02 Jan")),
+			WeekdayLabel: wd.String(),
+			Entries:      entries,
+		})
+	}
+	return out
+}
+
+func localTimeMinutes(localTime string) int {
+	for _, layout := range []string{"15:04", "03:04 PM"} {
+		t, err := time.Parse(layout, localTime)
+		if err == nil {
+			return t.Hour()*60 + t.Minute()
+		}
+	}
+	return 0
+}
+
+func isoWeekStartMonday(year int, week int) time.Time {
+	// ISO week 1 is the week with the year's first Thursday in it.
+	jan4 := time.Date(year, 1, 4, 12, 0, 0, 0, time.Local)
+	// Move back to Monday
+	offset := int(time.Monday - jan4.Weekday())
+	if offset > 0 {
+		offset -= 7
+	}
+	week1Monday := jan4.AddDate(0, 0, offset)
+	return week1Monday.AddDate(0, 0, (week-1)*7)
+}
+
+func adjacentISOWeek(year int, week int, deltaWeeks int) (int, int) {
+	target := isoWeekStartMonday(year, week).AddDate(0, 0, deltaWeeks*7)
+	return target.ISOWeek()
+}

internal/anime/service.go

@@ -0,0 +1,673 @@
+// Package anime provides anime catalog, discovery, search, and details services.
+package anime
+
+import (
+	"context"
+	"errors"
+	"mal/integrations/jikan"
+	"mal/internal/db"
+	"mal/internal/domain"
+	"mal/internal/observability"
+	"math/rand"
+	"sort"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/sync/errgroup"
+)
+
+type animeService struct {
+	jikan *jikan.Client
+	repo  domain.AnimeRepository
+}
+
+func wrapAnimes(in []jikan.Anime) []domain.Anime {
+	out := make([]domain.Anime, 0, len(in))
+	for _, a := range in {
+		out = append(out, domain.Anime{Anime: a})
+	}
+	return out
+}
+
+func NewAnimeService(jikan *jikan.Client, repo domain.AnimeRepository) *animeService {
+	return &animeService{jikan: jikan, repo: repo}
+}
+
+func (s *animeService) GetCatalogSection(ctx context.Context, userID string, section string) (domain.CatalogSectionData, error) {
+	var (
+		res jikan.TopAnimeResult
+		cw  []db.GetContinueWatchingEntriesRow
+	)
+
+	g, gCtx := errgroup.WithContext(ctx)
+
+	g.Go(func() error {
+		var err error
+		switch section {
+		case "Airing":
+			res, err = s.jikan.GetSeasonsNow(gCtx, 1)
+		case "Popular":
+			res, err = s.jikan.GetTopAnime(gCtx, 1)
+		}
+		return err
+	})
+
+	if userID != "" && section == "Continue" {
+		g.Go(func() error {
+			var err error
+			cw, err = s.repo.GetContinueWatchingEntries(gCtx, userID)
+			return err
+		})
+	}
+
+	if err := g.Wait(); err != nil {
+		return domain.CatalogSectionData{}, err
+	}
+
+	animes := wrapAnimes(res.Animes)
+	if len(animes) > 6 {
+		animes = animes[:6]
+	}
+
+	return domain.CatalogSectionData{
+		Animes:           animes,
+		ContinueWatching: cw,
+	}, nil
+}
+
+func (s *animeService) GetDiscoverSection(ctx context.Context, userID string, section string) (domain.DiscoverSectionData, error) {
+	var res jikan.TopAnimeResult
+
+	g, gCtx := errgroup.WithContext(ctx)
+
+	g.Go(func() error {
+		var err error
+		switch section {
+		case "Trending":
+			res, err = s.jikan.GetSeasonsNow(gCtx, 1)
+		case "Upcoming":
+			res, err = s.jikan.GetSeasonsUpcoming(gCtx, 1)
+		case "Top":
+			res, err = s.jikan.GetTopAnime(gCtx, 1)
+		}
+		return err
+	})
+
+	if err := g.Wait(); err != nil {
+		return domain.DiscoverSectionData{}, err
+	}
+
+	animes := wrapAnimes(res.Animes)
+	if len(animes) > 8 {
+		animes = animes[:8]
+	}
+
+	return domain.DiscoverSectionData{
+		Animes: animes,
+	}, nil
+}
+
+func (s *animeService) GetTopPickForYou(ctx context.Context, userID string) (domain.CatalogSectionData, error) {
+	return s.getTopPicksForYou(ctx, userID, forYouResultLimit)
+}
+
+func (s *animeService) GetTopPicksForYou(ctx context.Context, userID string) (domain.CatalogSectionData, error) {
+	return s.getTopPicksForYou(ctx, userID, forYouFullResultLimit)
+}
+
+func (s *animeService) getTopPicksForYou(
+	ctx context.Context,
+	userID string,
+	resultLimit int,
+) (domain.CatalogSectionData, error) {
+	if strings.TrimSpace(userID) == "" {
+		return domain.CatalogSectionData{Animes: []domain.Anime{}}, nil
+	}
+
+	watchlist, err := s.repo.GetUserWatchList(ctx, userID)
+	if err != nil {
+		return domain.CatalogSectionData{}, err
+	}
+
+	now := time.Now()
+	seedPool := buildRecommendationSeeds(now, watchlist)
+	if len(seedPool) == 0 {
+		return domain.CatalogSectionData{Animes: []domain.Anime{}}, nil
+	}
+
+	type rankedCandidate struct {
+		id                 int
+		collaborativeScore float64
+		profileSearchScore float64
+		anime              jikan.Anime
+		hasAnime           bool
+	}
+
+	watchlistAnimeIDs := make(map[int]struct{}, len(watchlist))
+	for _, entry := range watchlist {
+		if entry.AnimeID <= 0 {
+			continue
+		}
+		watchlistAnimeIDs[int(entry.AnimeID)] = struct{}{}
+	}
+
+	candidatesByID := map[int]rankedCandidate{}
+	var candidatesByIDMu sync.Mutex
+	upsertCandidate := func(candidate rankedCandidate) {
+		if candidate.id <= 0 {
+			return
+		}
+		if _, exists := watchlistAnimeIDs[candidate.id]; exists {
+			return
+		}
+
+		candidatesByIDMu.Lock()
+		defer candidatesByIDMu.Unlock()
+
+		current, ok := candidatesByID[candidate.id]
+		if !ok {
+			candidatesByID[candidate.id] = candidate
+			return
+		}
+
+		current.collaborativeScore += candidate.collaborativeScore
+		current.profileSearchScore += candidate.profileSearchScore
+		if candidate.hasAnime {
+			current.anime = candidate.anime
+			current.hasAnime = true
+		}
+		candidatesByID[candidate.id] = current
+	}
+
+	seedAnimes := make([]jikan.Anime, len(seedPool))
+	var seedFetchGroup errgroup.Group
+	seedFetchGroup.SetLimit(4)
+
+	for i, seed := range seedPool {
+		seedFetchGroup.Go(func() error {
+			anime, fetchErr := s.jikan.GetAnimeByID(ctx, seed.animeID)
+			if fetchErr != nil {
+				return fetchErr
+			}
+			seedAnimes[i] = anime
+			return nil
+		})
+	}
+
+	if err := seedFetchGroup.Wait(); err != nil {
+		return domain.CatalogSectionData{}, err
+	}
+
+	profile := buildTasteProfile(now, seedPool, seedAnimes)
+
+	var recommendationGroup errgroup.Group
+	recommendationGroup.SetLimit(4)
+
+	for _, seed := range seedPool {
+		recommendationGroup.Go(func() error {
+			recs, recErr := s.jikan.GetAnimeRecommendations(ctx, seed.animeID)
+			if recErr != nil {
+				return recErr
+			}
+			for i, rec := range recs {
+				if i >= forYouMaxRecommendations {
+					break
+				}
+				id := rec.Entry.MalID
+				if id <= 0 {
+					continue
+				}
+				if id == seed.animeID {
+					continue
+				}
+				upsertCandidate(rankedCandidate{
+					id:                 id,
+					collaborativeScore: float64(rec.Votes) * seed.weight,
+				})
+			}
+			return nil
+		})
+	}
+
+	if err := recommendationGroup.Wait(); err != nil {
+		return domain.CatalogSectionData{}, err
+	}
+
+	profileQueries := buildProfileSearchQueries(profile)
+	var profileSearchGroup errgroup.Group
+	profileSearchGroup.SetLimit(3)
+
+	for _, query := range profileQueries {
+		profileSearchGroup.Go(func() error {
+			res, searchErr := s.jikan.SearchAdvanced(
+				ctx,
+				"",
+				"",
+				"",
+				"score",
+				"desc",
+				query.genreIDs,
+				query.studioID,
+				true,
+				1,
+				forYouProfileSearchLimit,
+			)
+			if searchErr != nil {
+				observability.Warn(
+					"top_pick_profile_search_failed",
+					"anime",
+					"",
+					map[string]any{
+						"genres":    query.genreIDs,
+						"studio_id": query.studioID,
+					},
+					searchErr,
+				)
+				return nil
+			}
+
+			for i, anime := range res.Animes {
+				if anime.MalID <= 0 {
+					continue
+				}
+				upsertCandidate(rankedCandidate{
+					id:                 anime.MalID,
+					profileSearchScore: query.weight * profileSearchRankWeight(i),
+					anime:              anime,
+					hasAnime:           true,
+				})
+			}
+			return nil
+		})
+	}
+
+	if err := profileSearchGroup.Wait(); err != nil {
+		return domain.CatalogSectionData{}, err
+	}
+
+	if len(candidatesByID) == 0 {
+		return domain.CatalogSectionData{Animes: []domain.Anime{}}, nil
+	}
+
+	rankedIDs := make([]rankedCandidate, 0, len(candidatesByID))
+	for _, item := range candidatesByID {
+		rankedIDs = append(rankedIDs, item)
+	}
+	sort.Slice(rankedIDs, func(i, j int) bool {
+		left := rankedCandidateRetrievalScore(rankedIDs[i].collaborativeScore, rankedIDs[i].profileSearchScore)
+		right := rankedCandidateRetrievalScore(rankedIDs[j].collaborativeScore, rankedIDs[j].profileSearchScore)
+		if left == right {
+			return rankedIDs[i].id < rankedIDs[j].id
+		}
+		return left > right
+	})
+
+	limit := min(len(rankedIDs), forYouCandidateFetchLimit)
+	candidates := make([]recommendationCandidate, 0, limit)
+	var candidatesMu sync.Mutex
+	var detailGroup errgroup.Group
+	detailGroup.SetLimit(6)
+
+	for i := 0; i < limit; i++ {
+		item := rankedIDs[i]
+		detailGroup.Go(func() error {
+			anime := item.anime
+			if !item.hasAnime || !hasTasteMetadata(anime) {
+				fetchedAnime, fetchErr := s.jikan.GetAnimeByID(ctx, item.id)
+				if fetchErr != nil {
+					observability.Warn(
+						"recommendation_anime_fetch_failed",
+						"anime",
+						"",
+						map[string]any{"anime_id": item.id},
+						fetchErr,
+					)
+					return nil
+				}
+				anime = fetchedAnime
+			}
+
+			candidate := scoreRecommendationCandidate(
+				now,
+				profile,
+				anime,
+				item.collaborativeScore,
+				item.profileSearchScore,
+			)
+			candidatesMu.Lock()
+			candidates = append(candidates, candidate)
+			candidatesMu.Unlock()
+			return nil
+		})
+	}
+
+	if err := detailGroup.Wait(); err != nil {
+		return domain.CatalogSectionData{}, err
+	}
+
+	sort.Slice(candidates, func(i, j int) bool {
+		if candidates[i].score == candidates[j].score {
+			return candidates[i].anime.MalID < candidates[j].anime.MalID
+		}
+		return candidates[i].score > candidates[j].score
+	})
+
+	return domain.CatalogSectionData{
+		Animes: rerankRecommendationCandidates(candidates, resultLimit),
+	}, nil
+}
+
+func (s *animeService) GetAiringSchedule(ctx context.Context, userID string) ([]domain.Anime, error) {
+	if strings.TrimSpace(userID) == "" {
+		return []domain.Anime{}, nil
+	}
+
+	watchlist, err := s.repo.GetUserWatchList(ctx, userID)
+	if err != nil {
+		return nil, err
+	}
+
+	ids := make([]int, 0, 50)
+	for _, entry := range watchlist {
+		status := strings.TrimSpace(entry.Status)
+		if status != "watching" && status != "plan_to_watch" {
+			continue
+		}
+		if !entry.Airing.Valid || !entry.Airing.Bool {
+			continue
+		}
+		if entry.AnimeID <= 0 {
+			continue
+		}
+		ids = append(ids, int(entry.AnimeID))
+		if len(ids) >= 50 {
+			break
+		}
+	}
+
+	if len(ids) == 0 {
+		return []domain.Anime{}, nil
+	}
+
+	animes := make([]domain.Anime, 0, len(ids))
+	var g errgroup.Group
+	g.SetLimit(6)
+	var mu sync.Mutex
+
+	for _, id := range ids {
+		g.Go(func() error {
+			anime, fetchErr := s.jikan.GetAnimeByID(ctx, id)
+			if fetchErr != nil {
+				return fetchErr
+			}
+			mu.Lock()
+			animes = append(animes, domain.Anime{Anime: anime})
+			mu.Unlock()
+			return nil
+		})
+	}
+
+	if err := g.Wait(); err != nil {
+		if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
+			return nil, err
+		}
+		observability.Warn(
+			"schedule_partial_fetch_failed",
+			"anime",
+			"",
+			map[string]any{"user_id": userID, "count": len(ids)},
+			err,
+		)
+		return animes, nil
+	}
+
+	return animes, nil
+}
+
+func (s *animeService) GetAnimeByID(ctx context.Context, id int) (domain.Anime, error) {
+	anime, err := s.jikan.GetAnimeByID(ctx, id)
+	if err != nil {
+		return domain.Anime{}, err
+	}
+	return domain.Anime{Anime: anime}, nil
+}
+
+func (s *animeService) SearchAdvanced(ctx context.Context, q, animeType, status, orderBy, sort string, genres []int, studioID int, sfw bool, page, limit int) (jikan.SearchResult, error) {
+	return s.jikan.SearchAdvanced(ctx, q, animeType, status, orderBy, sort, genres, studioID, sfw, page, limit)
+}
+
+func (s *animeService) GetProducerNameByID(ctx context.Context, id int) (string, error) {
+	res, err := s.jikan.GetProducerByID(ctx, id)
+	if err != nil {
+		return "", err
+	}
+	for _, t := range res.Data.Titles {
+		if t.Title != "" {
+			return t.Title, nil
+		}
+	}
+	return "", nil
+}
+
+func (s *animeService) GetProducers(ctx context.Context, query string, page int, limit int) (jikan.ProducerListResult, error) {
+	return s.jikan.GetProducers(ctx, query, page, limit)
+}
+
+func (s *animeService) GetGenres(ctx context.Context) ([]domain.Genre, error) {
+	genres, err := s.jikan.GetAnimeGenres(ctx)
+	if err != nil {
+		return nil, err
+	}
+	out := make([]domain.Genre, 0, len(genres))
+	for _, g := range genres {
+		if g.MalID <= 0 || strings.TrimSpace(g.Name) == "" {
+			continue
+		}
+		out = append(out, domain.Genre{MalID: g.MalID, Name: g.Name})
+	}
+	return out, nil
+}
+
+func (s *animeService) GetCharacters(ctx context.Context, id int) ([]domain.CharacterEntry, error) {
+	items, err := s.jikan.GetAnimeCharacters(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make([]domain.CharacterEntry, 0, len(items))
+	for _, it := range items {
+		var mapped domain.CharacterEntry
+		mapped.Character.MalID = it.Character.MalID
+		mapped.Character.URL = it.Character.URL
+		mapped.Character.Name = it.Character.Name
+		mapped.Character.Images.Jpg.ImageURL = it.Character.Images.Jpg.ImageURL
+		mapped.Character.Images.Webp.ImageURL = it.Character.Images.Webp.ImageURL
+		mapped.Character.Images.Webp.SmallImageURL = it.Character.Images.Webp.SmallImageURL
+		mapped.Role = it.Role
+
+		if len(it.VoiceActors) > 0 {
+			mapped.VoiceActors = make([]domain.CharacterVoiceActor, 0, len(it.VoiceActors))
+			for _, va := range it.VoiceActors {
+				var mappedVA domain.CharacterVoiceActor
+				mappedVA.Language = va.Language
+				mappedVA.Person.MalID = va.Person.MalID
+				mappedVA.Person.URL = va.Person.URL
+				mappedVA.Person.Name = va.Person.Name
+				mappedVA.Person.Images.Jpg.ImageURL = va.Person.Images.Jpg.ImageURL
+				mapped.VoiceActors = append(mapped.VoiceActors, mappedVA)
+			}
+		}
+
+		out = append(out, mapped)
+	}
+
+	return out, nil
+}
+
+func (s *animeService) GetRecommendations(ctx context.Context, id int) ([]domain.RecommendationEntry, error) {
+	items, err := s.jikan.GetAnimeRecommendations(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make([]domain.RecommendationEntry, 0, len(items))
+	for _, it := range items {
+		var mapped domain.RecommendationEntry
+		mapped.Entry.MalID = it.Entry.MalID
+		mapped.Entry.URL = it.Entry.URL
+		mapped.Entry.Title = it.Entry.Title
+		mapped.Entry.Images.Webp.LargeImageURL = it.Entry.Images.Webp.LargeImageURL
+		mapped.URL = it.URL
+		mapped.Votes = it.Votes
+		out = append(out, mapped)
+	}
+	return out, nil
+}
+
+func (s *animeService) GetRelations(ctx context.Context, id int) ([]jikan.RelationEntry, error) {
+	return s.jikan.GetFullRelations(ctx, id)
+}
+
+func (s *animeService) WarmDetailSections(id int) {
+	s.jikan.WarmAnimeRecommendations(id)
+	s.jikan.WarmFullRelations(id)
+}
+
+func (s *animeService) GetEpisodes(ctx context.Context, id int, page int) (jikan.EpisodesResponse, error) {
+	return s.jikan.GetEpisodes(ctx, id, page)
+}
+
+func (s *animeService) GetStaff(ctx context.Context, id int) ([]domain.StaffEntry, error) {
+	items, err := s.jikan.GetAnimeStaff(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make([]domain.StaffEntry, 0, len(items))
+	for _, it := range items {
+		var mapped domain.StaffEntry
+		mapped.Person.MalID = it.Person.MalID
+		mapped.Person.URL = it.Person.URL
+		mapped.Person.Name = it.Person.Name
+		mapped.Person.Images.Jpg.ImageURL = it.Person.Images.Jpg.ImageURL
+		mapped.Positions = append([]string(nil), it.Positions...)
+		out = append(out, mapped)
+	}
+	return out, nil
+}
+
+func (s *animeService) GetStatistics(ctx context.Context, id int) (domain.Statistics, error) {
+	stats, err := s.jikan.GetAnimeStatistics(ctx, id)
+	if err != nil {
+		return domain.Statistics{}, err
+	}
+
+	out := domain.Statistics{
+		Watching:    stats.Watching,
+		Completed:   stats.Completed,
+		OnHold:      stats.OnHold,
+		Dropped:     stats.Dropped,
+		PlanToWatch: stats.PlanToWatch,
+		Total:       stats.Total,
+	}
+	if len(stats.Scores) > 0 {
+		out.Scores = make([]domain.StatisticsScore, 0, len(stats.Scores))
+		for _, s := range stats.Scores {
+			out.Scores = append(out.Scores, domain.StatisticsScore{Score: s.Score, Votes: s.Votes, Percentage: s.Percentage})
+		}
+	}
+	return out, nil
+}
+
+func (s *animeService) GetThemes(ctx context.Context, id int) (domain.ThemesData, error) {
+	themes, err := s.jikan.GetAnimeThemes(ctx, id)
+	if err != nil {
+		return domain.ThemesData{}, err
+	}
+	return domain.ThemesData{
+		Openings: append([]string(nil), themes.Openings...),
+		Endings:  append([]string(nil), themes.Endings...),
+	}, nil
+}
+
+func (s *animeService) GetReviews(ctx context.Context, id int, page int) ([]domain.ReviewEntry, bool, error) {
+	data, pag, err := s.jikan.GetAnimeReviews(ctx, id, page)
+	if err != nil {
+		return nil, false, err
+	}
+	out := make([]domain.ReviewEntry, 0, len(data))
+	for _, it := range data {
+		mapped := domain.ReviewEntry{
+			MalID:         it.MalID,
+			URL:           it.URL,
+			Type:          it.Type,
+			Date:          it.Date,
+			Review:        it.Review,
+			Score:         it.Score,
+			Tags:          append([]string(nil), it.Tags...),
+			IsSpoiler:     it.IsSpoiler,
+			IsPreliminary: it.IsPreliminary,
+			EpisodesSeen:  it.EpisodesSeen,
+			Reactions: domain.ReviewReactions{
+				Overall:     it.Reactions.Overall,
+				Nice:        it.Reactions.Nice,
+				LoveIt:      it.Reactions.LoveIt,
+				Funny:       it.Reactions.Funny,
+				Confusing:   it.Reactions.Confusing,
+				Informative: it.Reactions.Informative,
+				WellWritten: it.Reactions.WellWritten,
+				Creative:    it.Reactions.Creative,
+			},
+		}
+		mapped.User.URL = it.User.URL
+		mapped.User.Username = it.User.Username
+		mapped.User.Images.Jpg.ImageURL = it.User.Images.Jpg.ImageURL
+		mapped.User.Images.Webp.ImageURL = it.User.Images.Webp.ImageURL
+		out = append(out, mapped)
+	}
+
+	return out, pag.HasNextPage, nil
+}
+
+func (s *animeService) GetRandomAnime(ctx context.Context) (domain.Anime, error) {
+	randomCtx, cancel := context.WithTimeout(ctx, 2*time.Second)
+	defer cancel()
+
+	anime, err := s.jikan.GetRandomAnime(randomCtx)
+	if err == nil {
+		return domain.Anime{Anime: anime}, nil
+	}
+
+	for _, fallback := range []func(context.Context, int) (jikan.TopAnimeResult, error){
+		s.jikan.GetSeasonsNow,
+		s.jikan.GetTopAnime,
+		s.jikan.GetSeasonsUpcoming,
+	} {
+		res, fallbackErr := fallback(ctx, 1)
+		if fallbackErr != nil || len(res.Animes) == 0 {
+			continue
+		}
+		r := rand.New(rand.NewSource(time.Now().UnixNano()))
+		return domain.Anime{Anime: res.Animes[r.Intn(len(res.Animes))]}, nil
+	}
+
+	return domain.Anime{}, err
+}
+
+func (s *animeService) GetAllEpisodes(ctx context.Context, id int) ([]domain.EpisodeData, error) {
+	episodes, err := s.jikan.GetAllEpisodes(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	result := make([]domain.EpisodeData, len(episodes))
+	for i, ep := range episodes {
+		result[i] = domain.EpisodeData{
+			MalID:    ep.MalID,
+			Title:    ep.Title,
+			IsFiller: ep.Filler,
+			IsRecap:  ep.Recap,
+		}
+	}
+	return result, nil
+}

internal/anime/service/service.go

@@ -1,185 +0,0 @@
-package service
-
-import (
-	"context"
-	"mal/integrations/jikan"
-	"mal/internal/db"
-	"mal/internal/domain"
-	"math/rand"
-	"time"
-
-	"golang.org/x/sync/errgroup"
-)
-
-type animeService struct {
-	jikan *jikan.Client
-	repo  domain.AnimeRepository
-}
-
-func NewAnimeService(jikan *jikan.Client, repo domain.AnimeRepository) domain.AnimeService {
-	return &animeService{jikan: jikan, repo: repo}
-}
-
-func (s *animeService) GetCatalogSection(ctx context.Context, userID string, section string) (domain.CatalogSectionData, error) {
-	var (
-		res jikan.TopAnimeResult
-		cw  []db.GetContinueWatchingEntriesRow
-	)
-
-	g, gCtx := errgroup.WithContext(ctx)
-
-	g.Go(func() error {
-		var err error
-		switch section {
-		case "Airing":
-			res, err = s.jikan.GetSeasonsNow(gCtx, 1)
-		case "Popular":
-			res, err = s.jikan.GetTopAnime(gCtx, 1)
-		}
-		return err
-	})
-
-	if userID != "" && section == "Continue" {
-		g.Go(func() error {
-			var err error
-			cw, err = s.repo.GetContinueWatchingEntries(gCtx, userID)
-			return err
-		})
-	}
-
-	if err := g.Wait(); err != nil {
-		return domain.CatalogSectionData{}, err
-	}
-
-	animes := res.Animes
-	if len(animes) > 6 {
-		animes = animes[:6]
-	}
-
-	return domain.CatalogSectionData{
-		Animes:           animes,
-		ContinueWatching: cw,
-	}, nil
-}
-
-func (s *animeService) GetDiscoverSection(ctx context.Context, userID string, section string) (domain.DiscoverSectionData, error) {
-	var res jikan.TopAnimeResult
-
-	g, gCtx := errgroup.WithContext(ctx)
-
-	g.Go(func() error {
-		var err error
-		switch section {
-		case "Trending":
-			res, err = s.jikan.GetSeasonsNow(gCtx, 1)
-		case "Upcoming":
-			res, err = s.jikan.GetSeasonsUpcoming(gCtx, 1)
-		case "Top":
-			res, err = s.jikan.GetTopAnime(gCtx, 1)
-		}
-		return err
-	})
-
-	if err := g.Wait(); err != nil {
-		return domain.DiscoverSectionData{}, err
-	}
-
-	animes := res.Animes
-	if len(animes) > 8 {
-		animes = animes[:8]
-	}
-
-	return domain.DiscoverSectionData{
-		Animes: animes,
-	}, nil
-}
-
-func (s *animeService) GetAnimeByID(ctx context.Context, id int) (domain.Anime, error) {
-	return s.jikan.GetAnimeByID(ctx, id)
-}
-
-func (s *animeService) SearchAdvanced(ctx context.Context, q, animeType, status, orderBy, sort string, genres []int, sfw bool, page, limit int) (jikan.SearchResult, error) {
-	return s.jikan.SearchAdvanced(ctx, q, animeType, status, orderBy, sort, genres, sfw, page, limit)
-}
-
-func (s *animeService) GetGenres(ctx context.Context) ([]domain.Genre, error) {
-	return s.jikan.GetAnimeGenres(ctx)
-}
-
-func (s *animeService) GetCharacters(ctx context.Context, id int) ([]domain.Character, error) {
-	return s.jikan.GetAnimeCharacters(ctx, id)
-}
-
-func (s *animeService) GetRecommendations(ctx context.Context, id int) ([]domain.Recommendation, error) {
-	return s.jikan.GetAnimeRecommendations(ctx, id)
-}
-
-func (s *animeService) GetRelations(ctx context.Context, id int) ([]jikan.RelationEntry, error) {
-	return s.jikan.GetFullRelations(ctx, id)
-}
-
-func (s *animeService) GetEpisodes(ctx context.Context, id int, page int) (jikan.EpisodesResponse, error) {
-	return s.jikan.GetEpisodes(ctx, id, page)
-}
-
-func (s *animeService) GetStaff(ctx context.Context, id int) ([]domain.StaffEntry, error) {
-	return s.jikan.GetAnimeStaff(ctx, id)
-}
-
-func (s *animeService) GetStatistics(ctx context.Context, id int) (domain.Statistics, error) {
-	return s.jikan.GetAnimeStatistics(ctx, id)
-}
-
-func (s *animeService) GetThemes(ctx context.Context, id int) (domain.ThemesData, error) {
-	return s.jikan.GetAnimeThemes(ctx, id)
-}
-
-func (s *animeService) GetReviews(ctx context.Context, id int, page int) ([]domain.ReviewEntry, bool, error) {
-	data, pag, err := s.jikan.GetAnimeReviews(ctx, id, page)
-	if err != nil {
-		return nil, false, err
-	}
-	return data, pag.HasNextPage, nil
-}
-
-func (s *animeService) GetRandomAnime(ctx context.Context) (domain.Anime, error) {
-	randomCtx, cancel := context.WithTimeout(ctx, 2*time.Second)
-	defer cancel()
-
-	anime, err := s.jikan.GetRandomAnime(randomCtx)
-	if err == nil {
-		return anime, nil
-	}
-
-	for _, fallback := range []func(context.Context, int) (jikan.TopAnimeResult, error){
-		s.jikan.GetSeasonsNow,
-		s.jikan.GetTopAnime,
-		s.jikan.GetSeasonsUpcoming,
-	} {
-		res, fallbackErr := fallback(ctx, 1)
-		if fallbackErr != nil || len(res.Animes) == 0 {
-			continue
-		}
-		r := rand.New(rand.NewSource(time.Now().UnixNano()))
-		return res.Animes[r.Intn(len(res.Animes))], nil
-	}
-
-	return domain.Anime{}, err
-}
-
-func (s *animeService) GetAllEpisodes(ctx context.Context, id int) ([]domain.EpisodeData, error) {
-	episodes, err := s.jikan.GetAllEpisodes(ctx, id)
-	if err != nil {
-		return nil, err
-	}
-	result := make([]domain.EpisodeData, len(episodes))
-	for i, ep := range episodes {
-		result[i] = domain.EpisodeData{
-			MalID:    ep.MalID,
-			Title:    ep.Title,
-			IsFiller: ep.Filler,
-			IsRecap:  ep.Recap,
-		}
-	}
-	return result, nil
-}

internal/app/app.go

@@ -1,16 +1,19 @@
+// Package app bootstraps and wires the application dependencies.
 package app
 
 import (
 	"mal/integrations/jikan"
 	"mal/integrations/playback/allanime"
 	"mal/internal/anime"
+	"mal/internal/audit"
 	"mal/internal/auth"
+	"mal/internal/config"
 	"mal/internal/database"
 	"mal/internal/episodes"
 	"mal/internal/playback"
 	"mal/internal/server"
-	"mal/internal/templates"
 	"mal/internal/watchlist"
+	"mal/templates"
 
 	"github.com/gin-gonic/gin"
 	"github.com/gin-gonic/gin/render"
@@ -19,7 +22,9 @@ import (
 
 func NewApp() *fx.App {
 	return fx.New(
+		config.Module,
 		database.Module,
+		audit.Module,
 		jikan.Module,
 		allanime.Module,
 		episodes.Module,

internal/audit/context.go

@@ -0,0 +1,35 @@
+package audit
+
+import "context"
+
+type ctxKey string
+
+const (
+	ctxKeyIP        ctxKey = "audit_ip"
+	ctxKeyUserAgent ctxKey = "audit_user_agent"
+)
+
+func WithRequestInfo(ctx context.Context, ip string, userAgent string) context.Context {
+	if ctx == nil {
+		return nil
+	}
+	next := context.WithValue(ctx, ctxKeyIP, ip)
+	return context.WithValue(next, ctxKeyUserAgent, userAgent)
+}
+
+func RequestInfoFromContext(ctx context.Context) (ip string, userAgent string) {
+	if ctx == nil {
+		return "", ""
+	}
+	if v := ctx.Value(ctxKeyIP); v != nil {
+		if s, ok := v.(string); ok {
+			ip = s
+		}
+	}
+	if v := ctx.Value(ctxKeyUserAgent); v != nil {
+		if s, ok := v.(string); ok {
+			userAgent = s
+		}
+	}
+	return ip, userAgent
+}

internal/audit/middleware.go

@@ -0,0 +1,29 @@
+package audit
+
+import (
+	"net"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+func ContextMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		ip := clientIP(c.ClientIP())
+		userAgent := strings.TrimSpace(c.GetHeader("User-Agent"))
+		c.Request = c.Request.WithContext(WithRequestInfo(c.Request.Context(), ip, userAgent))
+		c.Next()
+	}
+}
+
+func clientIP(ip string) string {
+	trimmed := strings.TrimSpace(ip)
+	if trimmed == "" {
+		return ""
+	}
+	parsed := net.ParseIP(trimmed)
+	if parsed == nil {
+		return trimmed
+	}
+	return parsed.String()
+}

internal/audit/module.go

@@ -0,0 +1,9 @@
+package audit
+
+import (
+	"go.uber.org/fx"
+)
+
+var Module = fx.Options(
+	fx.Provide(NewAuditService),
+)

internal/audit/service.go

@@ -0,0 +1,73 @@
+// Package audit provides audit logging for user actions.
+package audit
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"mal/internal/db"
+	"mal/internal/domain"
+	"mal/internal/observability"
+	"strings"
+
+	"github.com/google/uuid"
+)
+
+type auditService struct {
+	queries *db.Queries
+}
+
+func NewAuditService(queries *db.Queries) domain.AuditService {
+	return &auditService{queries: queries}
+}
+
+func (s *auditService) Record(ctx context.Context, event domain.AuditEvent) error {
+	if s == nil || s.queries == nil {
+		return errors.New("audit service not configured")
+	}
+	action := strings.TrimSpace(event.Action)
+	if action == "" {
+		return errors.New("audit action missing")
+	}
+
+	ip, userAgent := RequestInfoFromContext(ctx)
+	if strings.TrimSpace(event.IP) != "" {
+		ip = event.IP
+	}
+	if strings.TrimSpace(event.UserAgent) != "" {
+		userAgent = event.UserAgent
+	}
+
+	metadataJSON := event.MetadataJSON
+	if len(metadataJSON) == 0 {
+		metadataJSON = json.RawMessage("null")
+	}
+
+	_, err := s.queries.CreateAuditLog(ctx, db.CreateAuditLogParams{
+		ID:           uuid.New().String(),
+		UserID:       sql.NullString{String: strings.TrimSpace(event.UserID), Valid: strings.TrimSpace(event.UserID) != ""},
+		Action:       action,
+		ResourceType: sql.NullString{String: strings.TrimSpace(event.ResourceType), Valid: strings.TrimSpace(event.ResourceType) != ""},
+		ResourceID:   sql.NullString{String: strings.TrimSpace(event.ResourceID), Valid: strings.TrimSpace(event.ResourceID) != ""},
+		Ip:           sql.NullString{String: strings.TrimSpace(ip), Valid: strings.TrimSpace(ip) != ""},
+		UserAgent:    sql.NullString{String: strings.TrimSpace(userAgent), Valid: strings.TrimSpace(userAgent) != ""},
+		MetadataJson: sql.NullString{String: string(metadataJSON), Valid: true},
+	})
+	if err != nil {
+		return err
+	}
+
+	observability.Info(
+		"audit",
+		"audit",
+		action,
+		map[string]any{
+			"user_id":       event.UserID,
+			"resource_type": event.ResourceType,
+			"resource_id":   event.ResourceID,
+		},
+	)
+
+	return nil
+}

internal/audit/service_test.go

@@ -0,0 +1,82 @@
+package audit_test
+
+import (
+	"context"
+	"encoding/json"
+	"os"
+	"testing"
+
+	"mal/internal/audit"
+	"mal/internal/database"
+	"mal/internal/db"
+	"mal/internal/domain"
+)
+
+func TestRecordInsertsAuditLog(t *testing.T) {
+	tmp, err := os.CreateTemp("", "mal-audit-*.db")
+	if err != nil {
+		t.Fatalf("CreateTemp: %v", err)
+	}
+	_ = tmp.Close()
+	t.Cleanup(func() { _ = os.Remove(tmp.Name()) })
+
+	sqlDB, err := db.Open(tmp.Name())
+	if err != nil {
+		t.Fatalf("db.Open: %v", err)
+	}
+	t.Cleanup(func() { _ = sqlDB.Close() })
+
+	if err := database.RunMigrations(sqlDB); err != nil {
+		t.Fatalf("RunMigrations: %v", err)
+	}
+
+	queries := db.New(sqlDB)
+	svc := audit.NewAuditService(queries)
+
+	if _, err := sqlDB.Exec("INSERT INTO user (id, username, password_hash) VALUES (?, ?, ?)", "user-1", "test", "hash"); err != nil {
+		t.Fatalf("insert user: %v", err)
+	}
+
+	ctx := audit.WithRequestInfo(context.Background(), "127.0.0.1", "unit-test")
+	metadata, err := json.Marshal(struct {
+		Foo string `json:"foo"`
+	}{Foo: "bar"})
+	if err != nil {
+		t.Fatalf("json.Marshal: %v", err)
+	}
+
+	if err := svc.Record(ctx, domain.AuditEvent{
+		UserID:       "user-1",
+		Action:       "test_action",
+		ResourceType: "thing",
+		ResourceID:   "123",
+		MetadataJSON: metadata,
+	}); err != nil {
+		t.Fatalf("Record: %v", err)
+	}
+
+	rows, err := sqlDB.Query("SELECT action, resource_type, resource_id, ip, user_agent, metadata_json FROM audit_log WHERE user_id = ?", "user-1")
+	if err != nil {
+		t.Fatalf("Query: %v", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	if !rows.Next() {
+		t.Fatalf("expected audit row")
+	}
+
+	var action, resourceType, resourceID, ip, userAgent, metadataJSON string
+	if err := rows.Scan(&action, &resourceType, &resourceID, &ip, &userAgent, &metadataJSON); err != nil {
+		t.Fatalf("Scan: %v", err)
+	}
+
+	if action != "test_action" || resourceType != "thing" || resourceID != "123" {
+		t.Fatalf("unexpected row action=%q resourceType=%q resourceID=%q", action, resourceType, resourceID)
+	}
+	if ip != "127.0.0.1" || userAgent != "unit-test" {
+		t.Fatalf("unexpected request info ip=%q userAgent=%q", ip, userAgent)
+	}
+	if metadataJSON == "" || metadataJSON == "null" {
+		t.Fatalf("expected metadata_json, got %q", metadataJSON)
+	}
+}

internal/auth/handler.go

@@ -1,4 +1,5 @@
-package handler
+// Package auth provides authentication and session management.
+package auth
 
 import (
 	"mal/internal/domain"

internal/auth/middleware.go

@@ -1,4 +1,4 @@
-package middleware
+package auth
 
 import (
 	"mal/internal/domain"
@@ -8,15 +8,52 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
+type publicRoute struct {
+	method string
+	path   string
+	prefix bool
+}
+
+var publicRoutes = []publicRoute{
+	// Pages.
+	{method: http.MethodGet, path: "/login"},
+	{method: http.MethodPost, path: "/login"},
+	{method: http.MethodGet, path: "/logout"},
+
+	// Static assets.
+	{path: "/static", prefix: true},
+	{path: "/dist", prefix: true},
+
+	// Observability endpoints.
+	{method: http.MethodGet, path: "/metrics"},
+
+	// Auth API.
+	{method: http.MethodPost, path: "/api/auth/login"},
+}
+
+func isPublicRequest(method string, path string) bool {
+	for _, r := range publicRoutes {
+		if r.method != "" && r.method != method {
+			continue
+		}
+		if r.prefix {
+			if strings.HasPrefix(path, r.path) {
+				return true
+			}
+			continue
+		}
+		if path == r.path {
+			return true
+		}
+	}
+	return false
+}
+
 func AuthMiddleware(svc domain.AuthService) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		path := c.Request.URL.Path
 
-		// Allow access to login, logout and static assets without authentication
-		if path == "/login" || path == "/logout" ||
-			strings.HasPrefix(path, "/static") ||
-			strings.HasPrefix(path, "/dist") ||
-			path == "/api/auth/login" {
+		if isPublicRequest(c.Request.Method, path) {
 			c.Next()
 			return
 		}

internal/auth/module.go

@@ -1,10 +1,6 @@
 package auth
 
 import (
-	"mal/internal/auth/handler"
-	"mal/internal/auth/middleware"
-	"mal/internal/auth/repository"
-	"mal/internal/auth/service"
 	"mal/internal/domain"
 	"mal/internal/server"
 
@@ -14,15 +10,15 @@ import (
 
 var Module = fx.Options(
 	fx.Provide(
-		repository.NewAuthRepository,
-		service.NewAuthService,
-		handler.NewAuthHandler,
+		NewAuthRepository,
+		NewAuthService,
+		NewAuthHandler,
 		func(svc domain.AuthService) gin.HandlerFunc {
-			return middleware.AuthMiddleware(svc)
+			return AuthMiddleware(svc)
 		},
 	),
 	fx.Provide(
-		server.AsRouteRegister(func(h *handler.AuthHandler) server.RouteRegister {
+		server.AsRouteRegister(func(h *AuthHandler) server.RouteRegister {
 			return h
 		}),
 	),

internal/auth/repository.go

@@ -1,4 +1,4 @@
-package repository
+package auth
 
 import (
 	"context"
@@ -27,7 +27,7 @@ func (r *authRepository) GetUserByUsername(ctx context.Context, username string)
 		}
 		return nil, err
 	}
-	return &u, nil
+	return &domain.User{User: u}, nil
 }
 
 func (r *authRepository) GetUserByID(ctx context.Context, id string) (*domain.User, error) {
@@ -38,7 +38,7 @@ func (r *authRepository) GetUserByID(ctx context.Context, id string) (*domain.Us
 		}
 		return nil, err
 	}
-	return &u, nil
+	return &domain.User{User: u}, nil
 }
 
 func (r *authRepository) CreateSession(ctx context.Context, userID string, sessionID string) (*domain.Session, error) {
@@ -50,7 +50,7 @@ func (r *authRepository) CreateSession(ctx context.Context, userID string, sessi
 	if err != nil {
 		return nil, err
 	}
-	return &s, nil
+	return &domain.Session{Session: s}, nil
 }
 
 func (r *authRepository) GetSession(ctx context.Context, sessionID string) (*domain.Session, error) {
@@ -61,7 +61,7 @@ func (r *authRepository) GetSession(ctx context.Context, sessionID string) (*dom
 		}
 		return nil, err
 	}
-	return &s, nil
+	return &domain.Session{Session: s}, nil
 }
 
 func (r *authRepository) RefreshSession(ctx context.Context, sessionID string, expiresAt time.Time) error {
@@ -85,7 +85,7 @@ func (r *authRepository) CreateAPIToken(ctx context.Context, userID, tokenHash,
 	if err != nil {
 		return nil, err
 	}
-	return &t, nil
+	return &domain.APIToken{ApiToken: t}, nil
 }
 
 func (r *authRepository) GetAPITokenByHash(ctx context.Context, tokenHash string) (*domain.APIToken, error) {
@@ -96,7 +96,7 @@ func (r *authRepository) GetAPITokenByHash(ctx context.Context, tokenHash string
 		}
 		return nil, err
 	}
-	return &t, nil
+	return &domain.APIToken{ApiToken: t}, nil
 }
 
 func (r *authRepository) TouchAPITokenLastUsedAt(ctx context.Context, tokenID string) error {

internal/auth/service.go

@@ -1,4 +1,4 @@
-package service
+package auth
 
 import (
 	"context"
@@ -6,7 +6,9 @@ import (
 	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
+	"encoding/json"
 	"errors"
+	"fmt"
 	"mal/internal/domain"
 	"strings"
 	"time"
@@ -16,11 +18,12 @@ import (
 )
 
 type authService struct {
-	repo domain.AuthRepository
+	repo     domain.AuthRepository
+	auditSvc domain.AuditService
 }
 
-func NewAuthService(repo domain.AuthRepository) domain.AuthService {
-	return &authService{repo: repo}
+func NewAuthService(repo domain.AuthRepository, auditSvc domain.AuditService) domain.AuthService {
+	return &authService{repo: repo, auditSvc: auditSvc}
 }
 
 func (s *authService) Login(ctx context.Context, username, password string) (*domain.Session, error) {
@@ -58,11 +61,32 @@ func (s *authService) LoginForAPIToken(ctx context.Context, username, password,
 		trimmedName = "Firefox extension"
 	}
 
-	rawToken, tokenHash := newOpaqueToken()
+	rawToken, tokenHash, err := newOpaqueToken()
+	if err != nil {
+		return "", nil, err
+	}
 	if _, err := s.repo.CreateAPIToken(ctx, user.ID, tokenHash, trimmedName); err != nil {
 		return "", nil, err
 	}
 
+	metadataBytes, err := json.Marshal(struct {
+		Name string `json:"name"`
+	}{Name: trimmedName})
+	if err == nil {
+		_ = s.auditSvc.Record(ctx, domain.AuditEvent{
+			UserID:       user.ID,
+			Action:       "api_token_created",
+			ResourceType: "api_token",
+			MetadataJSON: metadataBytes,
+		})
+	} else {
+		_ = s.auditSvc.Record(ctx, domain.AuditEvent{
+			UserID:       user.ID,
+			Action:       "api_token_created",
+			ResourceType: "api_token",
+		})
+	}
+
 	return rawToken, user, nil
 }
 
@@ -120,15 +144,25 @@ func (s *authService) RevokeAllAPITokensForUser(ctx context.Context, userID stri
 	if strings.TrimSpace(userID) == "" {
 		return errors.New("user id missing")
 	}
-	return s.repo.RevokeAllAPITokensForUser(ctx, userID)
+	if err := s.repo.RevokeAllAPITokensForUser(ctx, userID); err != nil {
+		return err
+	}
+	_ = s.auditSvc.Record(ctx, domain.AuditEvent{
+		UserID:       userID,
+		Action:       "api_token_revoked_all",
+		ResourceType: "api_token",
+	})
+	return nil
 }
 
-func newOpaqueToken() (token string, tokenHash string) {
+func newOpaqueToken() (token string, tokenHash string, err error) {
 	buf := make([]byte, 32)
-	_, _ = rand.Read(buf)
+	if _, err := rand.Read(buf); err != nil {
+		return "", "", fmt.Errorf("generate token bytes: %w", err)
+	}
 	token = base64.RawURLEncoding.EncodeToString(buf)
 
 	sum := sha256.Sum256([]byte(token))
 	tokenHash = hex.EncodeToString(sum[:])
-	return token, tokenHash
+	return token, tokenHash, nil
 }

internal/avatar.go

@@ -0,0 +1,11 @@
+package internal
+
+import (
+	"net/url"
+	"strings"
+)
+
+func DefaultAvatarURL(username string) string {
+	seed := url.QueryEscape(strings.TrimSpace(username))
+	return "https://api.dicebear.com/9.x/dylan/svg?seed=" + seed
+}

internal/config/config.go

@@ -0,0 +1,85 @@
+// Package config provides application configuration loading and access.
+package config
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+)
+
+type EpisodeAvailabilityMode string
+
+const (
+	EpisodeAvailabilityModeAuto   EpisodeAvailabilityMode = "auto"
+	EpisodeAvailabilityModeLegacy EpisodeAvailabilityMode = "legacy"
+	EpisodeAvailabilityModeJikan  EpisodeAvailabilityMode = "jikan"
+)
+
+type Config struct {
+	Port string
+
+	// GinMode maps to gin.SetMode. When empty, the server uses release mode by default.
+	GinMode string
+
+	DatabaseFile string
+
+	// Allow any Origin for CORS. Intended for local dev / reverse proxy setups only.
+	CORSAllowAll bool
+
+	EpisodeAvailabilityMode EpisodeAvailabilityMode
+
+	// Optional. When empty, proxy token signing is disabled.
+	PlaybackProxySecret string
+
+	// Optional debug toggle for Jikan client tracing.
+	JikanTrace bool
+}
+
+func Load() (Config, error) {
+	cfg := Config{
+		Port:                    firstNonEmpty(strings.TrimSpace(os.Getenv("PORT")), "3000"),
+		GinMode:                 strings.TrimSpace(os.Getenv("GIN_MODE")),
+		DatabaseFile:            firstNonEmpty(strings.TrimSpace(os.Getenv("DATABASE_FILE")), "mal.db"),
+		CORSAllowAll:            strings.TrimSpace(os.Getenv("MAL_CORS_ALLOW_ALL")) == "1",
+		PlaybackProxySecret:     strings.TrimSpace(os.Getenv("PLAYBACK_PROXY_SECRET")),
+		JikanTrace:              truthy(strings.TrimSpace(os.Getenv("MAL_JIKAN_TRACE"))),
+		EpisodeAvailabilityMode: EpisodeAvailabilityModeAuto,
+	}
+
+	if raw := strings.ToLower(strings.TrimSpace(os.Getenv("EPISODE_AVAILABILITY_MODE"))); raw != "" {
+		switch EpisodeAvailabilityMode(raw) {
+		case EpisodeAvailabilityModeAuto, EpisodeAvailabilityModeLegacy, EpisodeAvailabilityModeJikan:
+			cfg.EpisodeAvailabilityMode = EpisodeAvailabilityMode(raw)
+		default:
+			return Config{}, fmt.Errorf("invalid EPISODE_AVAILABILITY_MODE: %q (expected auto|legacy|jikan)", raw)
+		}
+	}
+
+	if strings.TrimSpace(cfg.Port) == "" {
+		return Config{}, errors.New("PORT must not be empty")
+	}
+	if strings.TrimSpace(cfg.DatabaseFile) == "" {
+		return Config{}, errors.New("DATABASE_FILE must not be empty")
+	}
+
+	return cfg, nil
+}
+
+func firstNonEmpty(values ...string) string {
+	for _, v := range values {
+		if strings.TrimSpace(v) != "" {
+			return v
+		}
+	}
+	return ""
+}
+
+func truthy(v string) bool {
+	switch strings.ToLower(strings.TrimSpace(v)) {
+	case "1", "true", "yes", "y", "on":
+		return true
+	default:
+		return false
+	}
+}

internal/config/module.go

@@ -0,0 +1,7 @@
+package config
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Provide(Load),
+)

internal/database/database.go

@@ -1,11 +1,13 @@
+// Package database manages database schema migrations and fixes.
 package database
 
 import (
 	"database/sql"
 	"embed"
 	"fmt"
-	"log"
+	"mal/internal/config"
 	"mal/internal/db"
+	"mal/internal/observability"
 
 	"github.com/pressly/goose/v3"
 	"go.uber.org/fx"
@@ -19,12 +21,11 @@ var Module = fx.Options(
 		ProvideSQLDB,
 		ProvideQueries,
 	),
-	fx.Invoke(RunMigrations),
+	fx.Invoke(RunMigrationsAndFixes),
 )
 
-func ProvideSQLDB() (*sql.DB, error) {
-	dbPath := db.GetDBFile()
-	dbConn, err := db.Open(dbPath)
+func ProvideSQLDB(cfg config.Config) (*sql.DB, error) {
+	dbConn, err := db.Open(cfg.DatabaseFile)
 	if err != nil {
 		return nil, fmt.Errorf("failed to open database: %w", err)
 	}
@@ -42,10 +43,16 @@ func RunMigrations(sqlDB *sql.DB) error {
 		return fmt.Errorf("failed to set goose dialect: %w", err)
 	}
 
-	log.Println("Running database migrations...")
+	observability.Info("db_migrations_start", "database", "", nil)
 	if err := goose.Up(sqlDB, "migrations"); err != nil {
 		return fmt.Errorf("failed to run migrations: %w", err)
 	}
 
 	return nil
 }
+func RunMigrationsAndFixes(sqlDB *sql.DB) error {
+	if err := RunMigrations(sqlDB); err != nil {
+		return err
+	}
+	return RunDataFixes(sqlDB)
+}

internal/database/database_test.go

@@ -12,7 +12,7 @@ func TestRunMigrationsCreatesHotPathIndexes(t *testing.T) {
 	if err != nil {
 		t.Fatalf("open sqlite: %v", err)
 	}
-	defer sqlDB.Close()
+	defer func() { _ = sqlDB.Close() }()
 	sqlDB.SetMaxOpenConns(1)
 
 	if err := RunMigrations(sqlDB); err != nil {

internal/database/fixes.go

@@ -0,0 +1,97 @@
+package database
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"time"
+
+	dbfixes "mal/internal/database/fixes"
+	"mal/internal/observability"
+)
+
+func RunDataFixes(sqlDB *sql.DB) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
+	defer cancel()
+
+	fixes := dbfixes.All()
+
+	if len(fixes) == 0 {
+		return nil
+	}
+
+	if err := ensureDataFixTable(ctx, sqlDB); err != nil {
+		return err
+	}
+
+	applied, err := loadAppliedFixes(ctx, sqlDB)
+	if err != nil {
+		return err
+	}
+
+	for _, fix := range fixes {
+		if applied[fix.ID] {
+			continue
+		}
+
+		observability.Info(
+			"db_data_fix_start",
+			"database",
+			"",
+			map[string]any{
+				"id": fix.ID,
+			},
+		)
+		if err := fix.Apply(ctx, sqlDB); err != nil {
+			return fmt.Errorf("data fix %s failed: %w", fix.ID, err)
+		}
+		if err := markFixApplied(ctx, sqlDB, fix.ID); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func ensureDataFixTable(ctx context.Context, sqlDB *sql.DB) error {
+	// Safety for cases where migrations weren't run (or in tests). This is intentionally tiny and idempotent.
+	_, err := sqlDB.ExecContext(ctx, `
+CREATE TABLE IF NOT EXISTS data_fixes (
+    id TEXT PRIMARY KEY,
+    applied_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+`)
+	if err != nil {
+		return fmt.Errorf("ensure data_fixes table: %w", err)
+	}
+	return nil
+}
+
+func loadAppliedFixes(ctx context.Context, sqlDB *sql.DB) (map[string]bool, error) {
+	rows, err := sqlDB.QueryContext(ctx, `SELECT id FROM data_fixes`)
+	if err != nil {
+		return nil, fmt.Errorf("load applied data fixes: %w", err)
+	}
+	defer rows.Close()
+
+	applied := make(map[string]bool)
+	for rows.Next() {
+		var id string
+		if err := rows.Scan(&id); err != nil {
+			return nil, fmt.Errorf("scan data fix id: %w", err)
+		}
+		applied[id] = true
+	}
+	if err := rows.Err(); err != nil {
+		return nil, fmt.Errorf("iterate data fixes: %w", err)
+	}
+	return applied, nil
+}
+
+func markFixApplied(ctx context.Context, sqlDB *sql.DB, id string) error {
+	_, err := sqlDB.ExecContext(ctx, `INSERT OR IGNORE INTO data_fixes (id) VALUES (?)`, id)
+	if err != nil {
+		return fmt.Errorf("mark data fix applied id=%s: %w", id, err)
+	}
+	return nil
+}

internal/database/fixes/20260526_episode_availability_backfill_next_refresh_at.go

@@ -0,0 +1,27 @@
+package fixes
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+)
+
+func init() {
+	Register(Fix{
+		ID: "20260526_episode_availability_backfill_next_refresh_at",
+		Apply: func(ctx context.Context, sqlDB *sql.DB) error {
+			// Old caches could have next_refresh_at NULL (especially for airing shows with missing broadcast metadata),
+			// which can result in "never refresh again" behavior on the server.
+			_, err := sqlDB.ExecContext(ctx, `
+UPDATE episode_availability_cache
+SET next_refresh_at = datetime(CURRENT_TIMESTAMP, '+6 hours'),
+    updated_at = CURRENT_TIMESTAMP
+WHERE next_refresh_at IS NULL;
+`)
+			if err != nil {
+				return fmt.Errorf("backfill episode_availability_cache.next_refresh_at: %w", err)
+			}
+			return nil
+		},
+	})
+}

internal/database/fixes/20260528_backfill_avatar_url.go

@@ -0,0 +1,46 @@
+package fixes
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"mal/internal"
+)
+
+func init() {
+	Register(Fix{
+		ID: "20260528_backfill_avatar_url",
+		Apply: func(ctx context.Context, sqlDB *sql.DB) error {
+			rows, err := sqlDB.QueryContext(ctx, `SELECT id, username FROM user WHERE avatar_url = ''`)
+			if err != nil {
+				return err
+			}
+			defer func() { _ = rows.Close() }()
+
+			type userRow struct {
+				id       string
+				username string
+			}
+			toUpdate := make([]userRow, 0, 64)
+			for rows.Next() {
+				var r userRow
+				if err := rows.Scan(&r.id, &r.username); err != nil {
+					return err
+				}
+				toUpdate = append(toUpdate, r)
+			}
+			if err := rows.Err(); err != nil {
+				return err
+			}
+
+			for _, u := range toUpdate {
+				avatarURL := internal.DefaultAvatarURL(u.username)
+				if _, err := sqlDB.ExecContext(ctx, `UPDATE user SET avatar_url = ? WHERE id = ?`, avatarURL, u.id); err != nil {
+					return fmt.Errorf("update avatar_url for user %s: %w", u.id, err)
+				}
+			}
+
+			return nil
+		},
+	})
+}

internal/database/fixes/20260608_backfill_anime_duration_seconds.go

@@ -0,0 +1,81 @@
+package fixes
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"mal/integrations/jikan"
+	"mal/internal/config"
+	"mal/internal/db"
+	"mal/internal/observability"
+)
+
+func init() {
+	Register(Fix{
+		ID: "20260608_backfill_anime_duration_seconds",
+		Apply: func(ctx context.Context, sqlDB *sql.DB) error {
+			rows, err := sqlDB.QueryContext(ctx, `
+SELECT id, title_original, title_english, title_japanese, image_url, airing
+FROM anime
+WHERE duration_seconds IS NULL;
+`)
+			if err != nil {
+				return fmt.Errorf("query anime rows missing duration_seconds: %w", err)
+			}
+			defer func() { _ = rows.Close() }()
+
+			client := jikan.NewClient(config.Config{}, db.New(sqlDB), observability.NewMetrics())
+
+			type animeRow struct {
+				id            int64
+				titleOriginal string
+			}
+
+			var toUpdate []animeRow
+			for rows.Next() {
+				var row animeRow
+				var titleEnglish sql.NullString
+				var titleJapanese sql.NullString
+				var imageURL string
+				var airing sql.NullBool
+				if err := rows.Scan(
+					&row.id,
+					&row.titleOriginal,
+					&titleEnglish,
+					&titleJapanese,
+					&imageURL,
+					&airing,
+				); err != nil {
+					return fmt.Errorf("scan anime row missing duration_seconds: %w", err)
+				}
+				toUpdate = append(toUpdate, row)
+			}
+			if err := rows.Err(); err != nil {
+				return fmt.Errorf("iterate anime rows missing duration_seconds: %w", err)
+			}
+
+			for _, row := range toUpdate {
+				anime, err := client.GetAnimeByID(ctx, int(row.id))
+				if err != nil {
+					return fmt.Errorf("fetch anime %d for duration backfill: %w", row.id, err)
+				}
+
+				durationSeconds := anime.DurationSeconds()
+				if durationSeconds <= 0 {
+					continue
+				}
+
+				if _, err := sqlDB.ExecContext(
+					ctx,
+					`UPDATE anime SET duration_seconds = ? WHERE id = ? AND duration_seconds IS NULL`,
+					durationSeconds,
+					row.id,
+				); err != nil {
+					return fmt.Errorf("update anime %d duration_seconds: %w", row.id, err)
+				}
+			}
+
+			return nil
+		},
+	})
+}

internal/database/fixes/registry.go

@@ -0,0 +1,25 @@
+// Package fixes implements one-off database migration fixes.
+package fixes
+
+import (
+	"context"
+	"database/sql"
+	"sort"
+)
+
+type Fix struct {
+	ID    string
+	Apply func(ctx context.Context, sqlDB *sql.DB) error
+}
+
+var registered []Fix
+
+func Register(fix Fix) {
+	registered = append(registered, fix)
+}
+
+func All() []Fix {
+	out := append([]Fix(nil), registered...)
+	sort.Slice(out, func(i, j int) bool { return out[i].ID < out[j].ID })
+	return out
+}

internal/database/migrations/012_remove_recovery_key.sql

@@ -1,6 +1,9 @@
 -- +goose Up
+-- +goose NO TRANSACTION
 PRAGMA foreign_keys = OFF;
 
+BEGIN;
+
 CREATE TABLE user_new (
   id TEXT PRIMARY KEY,
   username TEXT NOT NULL UNIQUE,
@@ -16,6 +19,8 @@ DROP TABLE user;
 
 ALTER TABLE user_new RENAME TO user;
 
+COMMIT;
+
 PRAGMA foreign_keys = ON;
 
 -- +goose Down

internal/database/migrations/016_add_avatar_url.sql

@@ -1,5 +1,3 @@
 -- +goose Up
 ALTER TABLE user ADD COLUMN avatar_url TEXT NOT NULL DEFAULT '';
-
-UPDATE user SET avatar_url = 'https://api.dicebear.com/9.x/dylan/svg?seed=' || username WHERE avatar_url = '';
 -- +goose Down

internal/database/migrations/022_add_data_fixes.sql

@@ -0,0 +1,8 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS data_fixes (
+    id TEXT PRIMARY KEY,
+    applied_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- +goose Down
+DROP TABLE IF EXISTS data_fixes;

internal/database/migrations/023_add_audit_log.sql

@@ -0,0 +1,18 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS audit_log (
+    id TEXT PRIMARY KEY,
+    occurred_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    user_id TEXT REFERENCES user(id) ON DELETE SET NULL,
+    action TEXT NOT NULL,
+    resource_type TEXT,
+    resource_id TEXT,
+    ip TEXT,
+    user_agent TEXT,
+    metadata_json TEXT
+);
+
+CREATE INDEX IF NOT EXISTS idx_audit_log_user_id_occurred_at ON audit_log(user_id, occurred_at DESC);
+CREATE INDEX IF NOT EXISTS idx_audit_log_action_occurred_at ON audit_log(action, occurred_at DESC);
+
+-- +goose Down
+DROP TABLE IF EXISTS audit_log;

internal/database/migrations/024_add_recommendation_foundation.sql

@@ -0,0 +1,62 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS recommendation_event (
+    id TEXT PRIMARY KEY,
+    user_id TEXT NOT NULL,
+    anime_id INTEGER,
+    event_type TEXT NOT NULL,
+    source TEXT,
+    metadata_json TEXT,
+    occurred_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY(user_id) REFERENCES user(id) ON DELETE CASCADE,
+    FOREIGN KEY(anime_id) REFERENCES anime(id) ON DELETE SET NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_recommendation_event_user_occurred_at
+ON recommendation_event(user_id, occurred_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_recommendation_event_user_event_type_occurred_at
+ON recommendation_event(user_id, event_type, occurred_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_recommendation_event_anime_occurred_at
+ON recommendation_event(anime_id, occurred_at DESC);
+
+CREATE TABLE IF NOT EXISTS recommendation_impression (
+    id TEXT PRIMARY KEY,
+    user_id TEXT NOT NULL,
+    anime_id INTEGER NOT NULL,
+    rail TEXT NOT NULL,
+    position INTEGER NOT NULL,
+    request_id TEXT,
+    metadata_json TEXT,
+    occurred_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY(user_id) REFERENCES user(id) ON DELETE CASCADE,
+    FOREIGN KEY(anime_id) REFERENCES anime(id) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_recommendation_impression_user_occurred_at
+ON recommendation_impression(user_id, occurred_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_recommendation_impression_request_id
+ON recommendation_impression(request_id);
+
+CREATE TABLE IF NOT EXISTS recommendation_profile_snapshot (
+    user_id TEXT PRIMARY KEY,
+    profile_json TEXT NOT NULL,
+    source_window_start DATETIME,
+    source_window_end DATETIME,
+    computed_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY(user_id) REFERENCES user(id) ON DELETE CASCADE
+);
+
+-- +goose Down
+DROP TABLE IF EXISTS recommendation_profile_snapshot;
+DROP INDEX IF EXISTS idx_recommendation_impression_request_id;
+DROP INDEX IF EXISTS idx_recommendation_impression_user_occurred_at;
+DROP TABLE IF EXISTS recommendation_impression;
+DROP INDEX IF EXISTS idx_recommendation_event_anime_occurred_at;
+DROP INDEX IF EXISTS idx_recommendation_event_user_event_type_occurred_at;
+DROP INDEX IF EXISTS idx_recommendation_event_user_occurred_at;
+DROP TABLE IF EXISTS recommendation_event;

internal/db/command_palette.go

@@ -44,7 +44,7 @@ LIMIT ?`, userID, needle, pattern, pattern, pattern, pattern, limit)
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	items := make([]GetContinueWatchingEntriesRow, 0, int(limit))
 	for rows.Next() {
@@ -122,7 +122,7 @@ LIMIT ?`, userID, needle, pattern, pattern, pattern, pattern, limit)
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	items := make([]GetUserWatchListRow, 0, int(limit))
 	for rows.Next() {

internal/db/db.go

@@ -1,6 +1,6 @@
 // Code generated by sqlc. DO NOT EDIT.
 // versions:
-//   sqlc v1.30.0
+//   sqlc v1.31.1
 
 package db
 

internal/db/helpers.go

@@ -1,3 +1,4 @@
+// Package db provides database access via sqlc-generated queries and helper functions.
 package db
 
 import "database/sql"
@@ -18,3 +19,7 @@ func DisplayTitle(titleEnglish, titleJapanese sql.NullString, titleOriginal stri
 func (r GetUserWatchListRow) DisplayTitle() string {
 	return DisplayTitle(r.TitleEnglish, r.TitleJapanese, r.TitleOriginal)
 }
+
+func (r GetContinueWatchingEntriesRow) DisplayTitle() string {
+	return DisplayTitle(r.TitleEnglish, r.TitleJapanese, r.TitleOriginal)
+}

internal/db/models.go

@@ -1,6 +1,6 @@
 // Code generated by sqlc. DO NOT EDIT.
 // versions:
-//   sqlc v1.30.0
+//   sqlc v1.31.1
 
 package db
 
@@ -47,6 +47,18 @@ type ApiToken struct {
 	RevokedAt  sql.NullTime `json:"revoked_at"`
 }
 
+type AuditLog struct {
+	ID           string         `json:"id"`
+	OccurredAt   time.Time      `json:"occurred_at"`
+	UserID       sql.NullString `json:"user_id"`
+	Action       string         `json:"action"`
+	ResourceType sql.NullString `json:"resource_type"`
+	ResourceID   sql.NullString `json:"resource_id"`
+	Ip           sql.NullString `json:"ip"`
+	UserAgent    sql.NullString `json:"user_agent"`
+	MetadataJson sql.NullString `json:"metadata_json"`
+}
+
 type ContinueWatchingEntry struct {
 	ID                 string          `json:"id"`
 	UserID             string          `json:"user_id"`
@@ -58,6 +70,11 @@ type ContinueWatchingEntry struct {
 	DurationSeconds    sql.NullFloat64 `json:"duration_seconds"`
 }
 
+type DataFix struct {
+	ID        string    `json:"id"`
+	AppliedAt time.Time `json:"applied_at"`
+}
+
 type EpisodeAvailabilityCache struct {
 	AnimeID       int64        `json:"anime_id"`
 	Data          string       `json:"data"`

internal/db/querier.go

@@ -1,6 +1,6 @@
 // Code generated by sqlc. DO NOT EDIT.
 // versions:
-//   sqlc v1.30.0
+//   sqlc v1.31.1
 
 package db
 
@@ -11,6 +11,7 @@ import (
 type Querier interface {
 	CountPendingAnimeFetchRetries(ctx context.Context) (int64, error)
 	CreateAPIToken(ctx context.Context, arg CreateAPITokenParams) (ApiToken, error)
+	CreateAuditLog(ctx context.Context, arg CreateAuditLogParams) (AuditLog, error)
 	CreateSession(ctx context.Context, arg CreateSessionParams) (Session, error)
 	DeleteAnimeFetchRetry(ctx context.Context, animeID int64) error
 	DeleteContinueWatchingEntry(ctx context.Context, arg DeleteContinueWatchingEntryParams) error
@@ -22,8 +23,11 @@ type Querier interface {
 	GetAllCachedAnime(ctx context.Context) ([]string, error)
 	GetAnime(ctx context.Context, id int64) (Anime, error)
 	GetAnimeNeedingRelationSync(ctx context.Context) ([]GetAnimeNeedingRelationSyncRow, error)
+	GetAuditLogsForUser(ctx context.Context, arg GetAuditLogsForUserParams) ([]AuditLog, error)
 	GetContinueWatchingEntries(ctx context.Context, userID string) ([]GetContinueWatchingEntriesRow, error)
 	GetContinueWatchingEntry(ctx context.Context, arg GetContinueWatchingEntryParams) (ContinueWatchingEntry, error)
+	GetCommandPaletteContinueWatching(ctx context.Context, userID string, query string, limit int64) ([]GetContinueWatchingEntriesRow, error)
+	GetCommandPaletteWatchlist(ctx context.Context, userID string, query string, limit int64) ([]GetUserWatchListRow, error)
 	GetDueAnimeFetchRetries(ctx context.Context, limit int64) ([]AnimeFetchRetry, error)
 	GetEpisodeAvailabilityCache(ctx context.Context, animeID int64) (EpisodeAvailabilityCache, error)
 	GetEpisodeProviderMapping(ctx context.Context, arg GetEpisodeProviderMappingParams) (EpisodeProviderMapping, error)
@@ -35,14 +39,18 @@ type Querier interface {
 	GetUser(ctx context.Context, id string) (User, error)
 	GetUserByUsername(ctx context.Context, username string) (User, error)
 	GetUserWatchList(ctx context.Context, userID string) ([]GetUserWatchListRow, error)
+	GetUserWatchlistAnimeIDs(ctx context.Context, userID string, animeIDs []int64) ([]int64, error)
 	GetWatchListEntry(ctx context.Context, arg GetWatchListEntryParams) (WatchListEntry, error)
 	GetWatchingAnime(ctx context.Context, userID string) ([]GetWatchingAnimeRow, error)
 	MarkAnimeFetchRetryFailed(ctx context.Context, arg MarkAnimeFetchRetryFailedParams) error
 	MarkEpisodeAvailabilityRefreshFailed(ctx context.Context, arg MarkEpisodeAvailabilityRefreshFailedParams) error
 	MarkRelationsSynced(ctx context.Context, id int64) error
+	RefreshSession(ctx context.Context, arg RefreshSessionParams) error
 	RevokeAllAPITokensForUser(ctx context.Context, userID string) error
 	SaveWatchProgress(ctx context.Context, arg SaveWatchProgressParams) error
 	SetJikanCache(ctx context.Context, arg SetJikanCacheParams) error
+	HasSkipSegmentOverrideTable(ctx context.Context) (bool, error)
+	ListSkipSegmentOverrides(ctx context.Context, userID string, animeID int64, episode int64) ([]SkipSegmentOverrideRow, error)
 	TouchAPITokenLastUsedAt(ctx context.Context, id string) error
 	UpdateAnimeStatus(ctx context.Context, arg UpdateAnimeStatusParams) error
 	UpsertAnime(ctx context.Context, arg UpsertAnimeParams) (Anime, error)
@@ -50,6 +58,7 @@ type Querier interface {
 	UpsertContinueWatchingEntry(ctx context.Context, arg UpsertContinueWatchingEntryParams) (ContinueWatchingEntry, error)
 	UpsertEpisodeAvailabilityCache(ctx context.Context, arg UpsertEpisodeAvailabilityCacheParams) error
 	UpsertEpisodeProviderMapping(ctx context.Context, arg UpsertEpisodeProviderMappingParams) error
+	UpsertSkipSegmentOverride(ctx context.Context, r SkipSegmentOverrideRow) error
 	UpsertWatchListEntry(ctx context.Context, arg UpsertWatchListEntryParams) (WatchListEntry, error)
 }
 

internal/db/queries.sql

@@ -1,6 +1,18 @@
 -- name: GetUser :one
 SELECT * FROM user WHERE id = ? LIMIT 1;
 
+-- name: CreateAuditLog :one
+INSERT INTO audit_log (id, user_id, action, resource_type, resource_id, ip, user_agent, metadata_json)
+VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+RETURNING *;
+
+-- name: GetAuditLogsForUser :many
+SELECT *
+FROM audit_log
+WHERE user_id = ?
+ORDER BY occurred_at DESC
+LIMIT ?;
+
 -- name: GetUserByUsername :one
 SELECT * FROM user WHERE username = ? LIMIT 1;
 

internal/db/queries.sql.go

@@ -1,6 +1,6 @@
 // Code generated by sqlc. DO NOT EDIT.
 // versions:
-//   sqlc v1.30.0
+//   sqlc v1.31.1
 // source: queries.sql
 
 package db
@@ -57,6 +57,49 @@ func (q *Queries) CreateAPIToken(ctx context.Context, arg CreateAPITokenParams)
 	return i, err
 }
 
+const createAuditLog = `-- name: CreateAuditLog :one
+INSERT INTO audit_log (id, user_id, action, resource_type, resource_id, ip, user_agent, metadata_json)
+VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+RETURNING id, occurred_at, user_id, "action", resource_type, resource_id, ip, user_agent, metadata_json
+`
+
+type CreateAuditLogParams struct {
+	ID           string         `json:"id"`
+	UserID       sql.NullString `json:"user_id"`
+	Action       string         `json:"action"`
+	ResourceType sql.NullString `json:"resource_type"`
+	ResourceID   sql.NullString `json:"resource_id"`
+	Ip           sql.NullString `json:"ip"`
+	UserAgent    sql.NullString `json:"user_agent"`
+	MetadataJson sql.NullString `json:"metadata_json"`
+}
+
+func (q *Queries) CreateAuditLog(ctx context.Context, arg CreateAuditLogParams) (AuditLog, error) {
+	row := q.db.QueryRowContext(ctx, createAuditLog,
+		arg.ID,
+		arg.UserID,
+		arg.Action,
+		arg.ResourceType,
+		arg.ResourceID,
+		arg.Ip,
+		arg.UserAgent,
+		arg.MetadataJson,
+	)
+	var i AuditLog
+	err := row.Scan(
+		&i.ID,
+		&i.OccurredAt,
+		&i.UserID,
+		&i.Action,
+		&i.ResourceType,
+		&i.ResourceID,
+		&i.Ip,
+		&i.UserAgent,
+		&i.MetadataJson,
+	)
+	return i, err
+}
+
 const createSession = `-- name: CreateSession :one
 INSERT INTO session (id, user_id, expires_at)
 VALUES (?, ?, ?)
@@ -124,22 +167,6 @@ func (q *Queries) DeleteSession(ctx context.Context, id string) error {
 	return err
 }
 
-const refreshSession = `-- name: RefreshSession :exec
-UPDATE session
-SET expires_at = ?
-WHERE id = ?
-`
-
-type RefreshSessionParams struct {
-	ExpiresAt time.Time `json:"expires_at"`
-	ID        string    `json:"id"`
-}
-
-func (q *Queries) RefreshSession(ctx context.Context, arg RefreshSessionParams) error {
-	_, err := q.db.ExecContext(ctx, refreshSession, arg.ExpiresAt, arg.ID)
-	return err
-}
-
 const deleteWatchListEntry = `-- name: DeleteWatchListEntry :exec
 DELETE FROM watch_list_entry
 WHERE user_id = ? AND anime_id = ?
@@ -299,6 +326,52 @@ func (q *Queries) GetAnimeNeedingRelationSync(ctx context.Context) ([]GetAnimeNe
 	return items, nil
 }
 
+const getAuditLogsForUser = `-- name: GetAuditLogsForUser :many
+SELECT id, occurred_at, user_id, "action", resource_type, resource_id, ip, user_agent, metadata_json
+FROM audit_log
+WHERE user_id = ?
+ORDER BY occurred_at DESC
+LIMIT ?
+`
+
+type GetAuditLogsForUserParams struct {
+	UserID sql.NullString `json:"user_id"`
+	Limit  int64          `json:"limit"`
+}
+
+func (q *Queries) GetAuditLogsForUser(ctx context.Context, arg GetAuditLogsForUserParams) ([]AuditLog, error) {
+	rows, err := q.db.QueryContext(ctx, getAuditLogsForUser, arg.UserID, arg.Limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []AuditLog
+	for rows.Next() {
+		var i AuditLog
+		if err := rows.Scan(
+			&i.ID,
+			&i.OccurredAt,
+			&i.UserID,
+			&i.Action,
+			&i.ResourceType,
+			&i.ResourceID,
+			&i.Ip,
+			&i.UserAgent,
+			&i.MetadataJson,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const getContinueWatchingEntries = `-- name: GetContinueWatchingEntries :many
 SELECT
     c.id,
@@ -918,6 +991,22 @@ func (q *Queries) MarkRelationsSynced(ctx context.Context, id int64) error {
 	return err
 }
 
+const refreshSession = `-- name: RefreshSession :exec
+UPDATE session
+SET expires_at = ?
+WHERE id = ?
+`
+
+type RefreshSessionParams struct {
+	ExpiresAt time.Time `json:"expires_at"`
+	ID        string    `json:"id"`
+}
+
+func (q *Queries) RefreshSession(ctx context.Context, arg RefreshSessionParams) error {
+	_, err := q.db.ExecContext(ctx, refreshSession, arg.ExpiresAt, arg.ID)
+	return err
+}
+
 const revokeAllAPITokensForUser = `-- name: RevokeAllAPITokensForUser :exec
 UPDATE api_token
 SET revoked_at = CURRENT_TIMESTAMP

internal/db/skip_segment_overrides.go

@@ -3,6 +3,7 @@ package db
 import (
 	"context"
 	"database/sql"
+	"errors"
 	"fmt"
 )
 
@@ -67,6 +68,9 @@ func (q *Queries) HasSkipSegmentOverrideTable(ctx context.Context) (bool, error)
 	const query = `SELECT name FROM sqlite_master WHERE type='table' AND name='skip_segment_override' LIMIT 1;`
 	var name sql.NullString
 	if err := q.db.QueryRowContext(ctx, query).Scan(&name); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return false, nil
+		}
 		return false, fmt.Errorf("check skip segment override table: %w", err)
 	}
 	return name.Valid && name.String != "", nil

internal/db/skip_segment_overrides_test.go

@@ -0,0 +1,25 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+func TestHasSkipSegmentOverrideTableReturnsFalseWhenMissing(t *testing.T) {
+	sqlDB, err := sql.Open("sqlite3", ":memory:")
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	defer func() { _ = sqlDB.Close() }()
+
+	ok, err := New(sqlDB).HasSkipSegmentOverrideTable(context.Background())
+	if err != nil {
+		t.Fatalf("HasSkipSegmentOverrideTable: %v", err)
+	}
+	if ok {
+		t.Fatalf("HasSkipSegmentOverrideTable returned true for missing table")
+	}
+}

internal/db/sqlite.go

@@ -3,24 +3,21 @@ package db
 import (
 	"database/sql"
 	"fmt"
-	"os"
 
+	// sqlite3 driver.
 	_ "github.com/mattn/go-sqlite3"
 )
 
 // Open connects to a sqlite3 database with foreign keys enforced
 func Open(dbFile string) (*sql.DB, error) {
-	db, err := sql.Open("sqlite3", fmt.Sprintf("file:%s?_foreign_keys=on", dbFile))
+	// busy_timeout avoids immediate SQLITE_BUSY errors under concurrent access.
+	// foreign_keys ensures FK constraints are enforced for this connection.
+	db, err := sql.Open("sqlite3", fmt.Sprintf("file:%s?_foreign_keys=on&_busy_timeout=5000", dbFile))
 	if err != nil {
 		return nil, fmt.Errorf("failed to open db: %w", err)
 	}
+	// WAL improves concurrency between readers and writers.
+	_, _ = db.Exec("PRAGMA journal_mode=WAL;")
+	_, _ = db.Exec("PRAGMA busy_timeout=5000;")
 	return db, nil
 }
-
-// GetDBFile returns the database file path, checking DATABASE_FILE env var first
-func GetDBFile() string {
-	if f := os.Getenv("DATABASE_FILE"); f != "" {
-		return f
-	}
-	return "mal.db"
-}

internal/db/watchlist_ids.go

@@ -24,7 +24,7 @@ func (q *Queries) GetUserWatchlistAnimeIDs(ctx context.Context, userID string, a
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	matches := make([]int64, 0, len(animeIDs))
 	for rows.Next() {

internal/db/watchlist_ids_test.go

@@ -14,7 +14,7 @@ func TestGetUserWatchlistAnimeIDsFiltersRequestedIDs(t *testing.T) {
 	if err != nil {
 		t.Fatalf("open sqlite: %v", err)
 	}
-	defer sqlDB.Close()
+	defer func() { _ = sqlDB.Close() }()
 
 	_, err = sqlDB.Exec(`
 		CREATE TABLE watch_list_entry (

internal/dbtx/tx.go

@@ -0,0 +1,25 @@
+package dbtx
+
+import (
+	"context"
+	"database/sql"
+)
+
+func Run[T any](ctx context.Context, sqlDB *sql.DB, repo T, withTx func(*sql.Tx) T, fn func(context.Context, T) error) error {
+	if sqlDB == nil {
+		return fn(ctx, repo)
+	}
+
+	tx, err := sqlDB.BeginTx(ctx, nil)
+	if err != nil {
+		return err
+	}
+
+	txRepo := withTx(tx)
+	if err := fn(ctx, txRepo); err != nil {
+		_ = tx.Rollback()
+		return err
+	}
+
+	return tx.Commit()
+}

internal/domain/anime.go

@@ -1,3 +1,4 @@
+// Package domain defines the core domain types and interfaces used across the application.
 package domain
 
 import (
@@ -6,24 +7,152 @@ import (
 	"mal/internal/db"
 )
 
-type Anime = jikan.Anime
-type TopAnimeResult = jikan.TopAnimeResult
-type Genre = jikan.Genre
-type Character = jikan.CharacterEntry
-type Recommendation = jikan.RecommendationEntry
-type StaffEntry = jikan.StaffEntry
-type Statistics = jikan.Statistics
-type ThemesData = jikan.ThemesData
-type ReviewEntry = jikan.ReviewEntry
+type Anime struct {
+	jikan.Anime
+}
 
-type AnimeService interface {
+type Genre struct {
+	MalID int
+	Name  string
+}
+
+type CharacterPerson struct {
+	MalID  int
+	URL    string
+	Name   string
+	Images struct {
+		Jpg struct {
+			ImageURL string
+		}
+	}
+}
+
+type CharacterVoiceActor struct {
+	Person   CharacterPerson
+	Language string
+}
+
+type CharacterEntry struct {
+	Character struct {
+		MalID  int
+		URL    string
+		Name   string
+		Images struct {
+			Jpg struct {
+				ImageURL string
+			}
+			Webp struct {
+				ImageURL      string
+				SmallImageURL string
+			}
+		}
+	}
+	Role        string
+	VoiceActors []CharacterVoiceActor
+}
+
+type RecommendationEntry struct {
+	Entry struct {
+		MalID  int
+		URL    string
+		Title  string
+		Images struct {
+			Webp struct {
+				LargeImageURL string
+			}
+		}
+	}
+	URL   string
+	Votes int
+}
+
+type StaffEntry struct {
+	Person    CharacterPerson
+	Positions []string
+}
+
+type StatisticsScore struct {
+	Score      int
+	Votes      int
+	Percentage float64
+}
+
+type Statistics struct {
+	Watching    int
+	Completed   int
+	OnHold      int
+	Dropped     int
+	PlanToWatch int
+	Total       int
+	Scores      []StatisticsScore
+}
+
+type ThemesData struct {
+	Openings []string
+	Endings  []string
+}
+
+type ReviewReactions struct {
+	Overall     int
+	Nice        int
+	LoveIt      int
+	Funny       int
+	Confusing   int
+	Informative int
+	WellWritten int
+	Creative    int
+}
+
+type ReviewUser struct {
+	URL      string
+	Username string
+	Images   struct {
+		Jpg struct {
+			ImageURL string
+		}
+		Webp struct {
+			ImageURL string
+		}
+	}
+}
+
+type ReviewEntry struct {
+	MalID         int
+	URL           string
+	Type          string
+	Reactions     ReviewReactions
+	Date          string
+	Review        string
+	Score         int
+	Tags          []string
+	IsSpoiler     bool
+	IsPreliminary bool
+	EpisodesSeen  int
+	User          ReviewUser
+}
+
+type AnimeCatalogService interface {
 	GetCatalogSection(ctx context.Context, userID string, section string) (CatalogSectionData, error)
+	GetTopPickForYou(ctx context.Context, userID string) (CatalogSectionData, error)
+	GetTopPicksForYou(ctx context.Context, userID string) (CatalogSectionData, error)
+}
+
+type AnimeDiscoverService interface {
 	GetDiscoverSection(ctx context.Context, userID string, section string) (DiscoverSectionData, error)
-	GetAnimeByID(ctx context.Context, id int) (Anime, error)
-	SearchAdvanced(ctx context.Context, q, animeType, status, orderBy, sort string, genres []int, sfw bool, page, limit int) (jikan.SearchResult, error)
+	GetAiringSchedule(ctx context.Context, userID string) ([]Anime, error)
+}
+
+type AnimeSearchService interface {
+	SearchAdvanced(ctx context.Context, q, animeType, status, orderBy, sort string, genres []int, studioID int, sfw bool, page, limit int) (jikan.SearchResult, error)
+	GetProducerNameByID(ctx context.Context, id int) (string, error)
+	GetProducers(ctx context.Context, query string, page int, limit int) (jikan.ProducerListResult, error)
 	GetGenres(ctx context.Context) ([]Genre, error)
-	GetCharacters(ctx context.Context, id int) ([]Character, error)
-	GetRecommendations(ctx context.Context, id int) ([]Recommendation, error)
+}
+
+type AnimeDetailsService interface {
+	GetAnimeByID(ctx context.Context, id int) (Anime, error)
+	GetCharacters(ctx context.Context, id int) ([]CharacterEntry, error)
+	GetRecommendations(ctx context.Context, id int) ([]RecommendationEntry, error)
 	GetRelations(ctx context.Context, id int) ([]jikan.RelationEntry, error)
 	GetEpisodes(ctx context.Context, id int, page int) (jikan.EpisodesResponse, error)
 	GetAllEpisodes(ctx context.Context, id int) ([]EpisodeData, error)
@@ -34,6 +163,11 @@ type AnimeService interface {
 	GetReviews(ctx context.Context, id int, page int) ([]ReviewEntry, bool, error)
 }
 
+type AnimePlaybackService interface {
+	GetAnimeByID(ctx context.Context, id int) (Anime, error)
+	GetAllEpisodes(ctx context.Context, id int) ([]EpisodeData, error)
+}
+
 type CatalogSectionData struct {
 	Animes           []Anime
 	ContinueWatching []db.GetContinueWatchingEntriesRow

internal/domain/audit.go

@@ -0,0 +1,20 @@
+package domain
+
+import (
+	"context"
+	"encoding/json"
+)
+
+type AuditEvent struct {
+	UserID       string
+	Action       string
+	ResourceType string
+	ResourceID   string
+	MetadataJSON json.RawMessage
+	IP           string
+	UserAgent    string
+}
+
+type AuditService interface {
+	Record(ctx context.Context, event AuditEvent) error
+}

internal/domain/auth.go

@@ -6,9 +6,17 @@ import (
 	"time"
 )
 
-type User = db.User
-type Session = db.Session
-type APIToken = db.ApiToken
+type User struct {
+	db.User
+}
+
+type Session struct {
+	db.Session
+}
+
+type APIToken struct {
+	db.ApiToken
+}
 
 const SessionLifetime = 90 * 24 * time.Hour
 

internal/domain/playback.go

@@ -9,7 +9,8 @@ type PlaybackService interface {
 	BuildWatchData(ctx context.Context, animeID int, titleCandidates []string, episode string, mode string, userID string) (WatchPageData, error)
 	SaveProgress(ctx context.Context, userID string, animeID int64, episode int, timeSeconds float64) error
 	CompleteAnime(ctx context.Context, userID string, animeID int64) error
-	ResolveProxyToken(token string) (string, string, error)
+	SignProxyToken(targetURL, referer, scope string) (string, error)
+	ResolveProxyToken(token string, scope string) (string, string, error)
 	UpsertSkipSegmentOverride(ctx context.Context, userID string, animeID int64, episode int, skipType string, startTime, endTime float64) error
 }
 
@@ -38,18 +39,15 @@ type WatchData struct {
 	ModeSwitchedFrom string
 	AvailableModes   []string
 	Segments         []SkipSegment
+	Airing           bool
 }
 
 type SubtitleItem struct {
-	Lang    string `json:"lang"`
-	URL     string `json:"url,omitempty"`
-	Referer string `json:"referer,omitempty"`
-	Token   string `json:"token"`
+	Lang  string `json:"lang"`
+	Token string `json:"token"`
 }
 
 type ModeSource struct {
-	URL       string         `json:"url,omitempty"`
-	Referer   string         `json:"referer,omitempty"`
 	Token     string         `json:"token"`
 	Subtitles []SubtitleItem `json:"subtitles"`
 	Qualities []string       `json:"qualities,omitempty"`
@@ -89,6 +87,7 @@ type EpisodeData struct {
 }
 
 type PlaybackRepository interface {
+	InTx(ctx context.Context, fn func(ctx context.Context, repo PlaybackRepository) error) error
 	GetWatchListEntry(ctx context.Context, params db.GetWatchListEntryParams) (db.WatchListEntry, error)
 	GetContinueWatchingEntry(ctx context.Context, params db.GetContinueWatchingEntryParams) (db.ContinueWatchingEntry, error)
 	SaveWatchProgress(ctx context.Context, params db.SaveWatchProgressParams) error

internal/domain/watchlist.go

@@ -21,6 +21,7 @@ type WatchlistService interface {
 }
 
 type WatchlistRepository interface {
+	InTx(ctx context.Context, fn func(ctx context.Context, repo WatchlistRepository) error) error
 	UpsertAnime(ctx context.Context, arg db.UpsertAnimeParams) (db.Anime, error)
 	GetAnime(ctx context.Context, id int64) (db.Anime, error)
 	UpsertWatchListEntry(ctx context.Context, arg db.UpsertWatchListEntryParams) (db.WatchListEntry, error)

internal/episodes/module.go

@@ -1,31 +1,29 @@
+// Package episodes manages episode availability checking and refresh scheduling.
 package episodes
 
 import (
-	"os"
-	"strings"
-
 	"mal/integrations/jikan"
 	"mal/integrations/playback/allanime"
+	"mal/internal/config"
 	"mal/internal/db"
 	"mal/internal/domain"
 	episodeService "mal/internal/episodes/service"
+	"mal/internal/observability"
 
 	"go.uber.org/fx"
 )
 
-func episodeAvailabilityEnabled() bool {
-	value := strings.ToLower(strings.TrimSpace(os.Getenv("EPISODE_AVAILABILITY_MODE")))
-	return value != "legacy" && value != "jikan"
+func episodeAvailabilityEnabled(cfg config.Config) bool {
+	return cfg.EpisodeAvailabilityMode != config.EpisodeAvailabilityModeLegacy && cfg.EpisodeAvailabilityMode != config.EpisodeAvailabilityModeJikan
 }
 
 var Module = fx.Options(
 	fx.Provide(
 		episodeAvailabilityEnabled,
 		fx.Annotate(
-			func(queries *db.Queries, jikanClient *jikan.Client, providers []domain.EpisodeAvailabilityProvider, enabled bool) domain.EpisodeService {
-				return episodeService.NewEpisodeService(queries, jikanClient, providers, enabled)
+			func(queries *db.Queries, jikanClient *jikan.Client, providers []domain.EpisodeAvailabilityProvider, enabled bool, metrics *observability.Metrics) domain.EpisodeService {
+				return episodeService.NewEpisodeService(queries, jikanClient, providers, enabled, metrics)
 			},
-			fx.ParamTags(``, ``, ``, ``),
 		),
 	),
 	fx.Provide(func(p *allanime.AllAnimeProvider) []domain.EpisodeAvailabilityProvider {

internal/episodes/service/service.go

@@ -1,3 +1,4 @@
+// Package service provides episode availability checking logic.
 package service
 
 import (
@@ -6,18 +7,20 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log"
 	"mal/integrations/jikan"
 	"mal/internal/db"
 	"mal/internal/domain"
+	"mal/internal/observability"
 	"sort"
+	"strconv"
 	"strings"
 	"time"
 )
 
 const (
-	retryInterval = 15 * time.Minute
-	retryWindow   = 3 * time.Hour
+	retryInterval                 = 15 * time.Minute
+	retryWindow                   = 3 * time.Hour
+	airingFallbackRefreshInterval = 6 * time.Hour
 )
 
 type Clock interface {
@@ -34,19 +37,21 @@ type EpisodeService struct {
 	providers []domain.EpisodeAvailabilityProvider
 	clock     Clock
 	enabled   bool
+	metrics   *observability.Metrics
 }
 
-func NewEpisodeService(queries *db.Queries, jikanClient *jikan.Client, providers []domain.EpisodeAvailabilityProvider, enabled bool) domain.EpisodeService {
-	return NewEpisodeServiceWithClock(queries, jikanClient, providers, enabled, realClock{})
+func NewEpisodeService(queries *db.Queries, jikanClient *jikan.Client, providers []domain.EpisodeAvailabilityProvider, enabled bool, metrics *observability.Metrics) domain.EpisodeService {
+	return NewEpisodeServiceWithClock(queries, jikanClient, providers, enabled, realClock{}, metrics)
 }
 
-func NewEpisodeServiceWithClock(queries *db.Queries, jikanClient *jikan.Client, providers []domain.EpisodeAvailabilityProvider, enabled bool, clock Clock) *EpisodeService {
+func NewEpisodeServiceWithClock(queries *db.Queries, jikanClient *jikan.Client, providers []domain.EpisodeAvailabilityProvider, enabled bool, clock Clock, metrics *observability.Metrics) *EpisodeService {
 	return &EpisodeService{
 		queries:   queries,
 		jikan:     jikanClient,
 		providers: providers,
 		clock:     clock,
 		enabled:   enabled,
+		metrics:   metrics,
 	}
 }
 
@@ -56,7 +61,7 @@ func (s *EpisodeService) GetCanonicalEpisodes(ctx context.Context, anime domain.
 	}
 
 	if !forceRefresh {
-		if cached, ok := s.getFreshCached(ctx, anime.MalID); ok {
+		if cached, ok := s.getFreshCached(ctx, anime); ok {
 			return cached, nil
 		}
 	}
@@ -77,14 +82,43 @@ func (s *EpisodeService) RefreshTrackedDue(ctx context.Context, limit int) error
 		return fmt.Errorf("get due tracked anime: %w", err)
 	}
 
-	for _, id := range ids {
+	for i, id := range ids {
+		if ctx.Err() != nil {
+			observability.Warn(
+				"episodes_worker_tick_interrupted",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id":  id,
+					"remaining": len(ids) - i,
+				},
+				ctx.Err(),
+			)
+			break
+		}
 		anime, err := s.jikan.GetAnimeByID(ctx, int(id))
 		if err != nil {
-			log.Printf("episodes: failed to fetch anime for refresh anime_id=%d error=%v", id, err)
+			observability.Warn(
+				"episodes_refresh_fetch_anime_failed",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id": id,
+				},
+				err,
+			)
 			continue
 		}
-		if _, err := s.refresh(ctx, anime); err != nil {
-			log.Printf("episodes: refresh failed anime_id=%d error=%v", id, err)
+		if _, err := s.refresh(ctx, domain.Anime{Anime: anime}); err != nil {
+			observability.Warn(
+				"episodes_refresh_failed",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id": id,
+				},
+				err,
+			)
 		}
 	}
 
@@ -93,22 +127,53 @@ func (s *EpisodeService) RefreshTrackedDue(ctx context.Context, limit int) error
 
 func (s *EpisodeService) refresh(ctx context.Context, anime domain.Anime) (domain.CanonicalEpisodeList, error) {
 	now := s.clock.Now()
-	log.Printf("episodes: refresh start anime_id=%d title=%q airing=%t", anime.MalID, anime.DisplayTitle(), anime.Airing)
+	observability.Info(
+		"episodes_refresh_start",
+		"episodes",
+		"",
+		map[string]any{
+			"anime_id": anime.MalID,
+			"title":    anime.DisplayTitle(),
+			"airing":   anime.Airing,
+		},
+	)
 
 	jikanEpisodes, jikanErr := s.jikan.GetAllEpisodes(ctx, anime.MalID)
 	if jikanErr != nil {
-		log.Printf("episodes: jikan episode metadata failed anime_id=%d error=%v", anime.MalID, jikanErr)
+		observability.Warn(
+			"episodes_jikan_metadata_failed",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+			},
+			jikanErr,
+		)
 	}
 
 	providerAvailability, source, providerErr := s.fetchProviderAvailability(ctx, anime)
 	if providerErr != nil {
 		s.markFailure(ctx, anime, providerErr)
 		if cached, ok := s.getCached(ctx, anime.MalID); ok {
-			log.Printf("episodes: serving stale cache after provider failure anime_id=%d error=%v", anime.MalID, providerErr)
+			observability.Warn(
+				"episodes_provider_failed_serving_stale_cache",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id": anime.MalID,
+				},
+				providerErr,
+			)
 			return cached, nil
 		}
 		if jikanErr == nil {
-			return s.store(ctx, anime, jikanEpisodes, domain.EpisodeAvailability{}, "jikan_fallback", now, false)
+			storeCtx := ctx
+			if ctx.Err() != nil {
+				var cancel context.CancelFunc
+				storeCtx, cancel = context.WithTimeout(context.Background(), 10*time.Second)
+				defer cancel()
+			}
+			return s.store(storeCtx, anime, jikanEpisodes, domain.EpisodeAvailability{}, "jikan_fallback", now, false)
 		}
 		return domain.CanonicalEpisodeList{}, providerErr
 	}
@@ -121,16 +186,44 @@ func (s *EpisodeService) fetchProviderAvailability(ctx context.Context, anime do
 	for _, provider := range s.providers {
 		providerID, err := s.providerID(ctx, anime, provider, titles)
 		if err != nil {
-			log.Printf("episodes: provider id miss anime_id=%d provider=%s error=%v", anime.MalID, provider.Name(), err)
+			observability.Warn(
+				"episodes_provider_id_miss",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id": anime.MalID,
+					"provider": provider.Name(),
+				},
+				err,
+			)
 			continue
 		}
 
 		available, err := provider.GetEpisodeAvailabilityByProviderID(ctx, providerID)
 		if err != nil {
-			log.Printf("episodes: provider availability miss anime_id=%d provider=%s error=%v", anime.MalID, provider.Name(), err)
+			observability.Warn(
+				"episodes_provider_availability_miss",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id": anime.MalID,
+					"provider": provider.Name(),
+				},
+				err,
+			)
 			continue
 		}
-		log.Printf("episodes: provider availability hit anime_id=%d provider=%s sub=%d dub=%d", anime.MalID, provider.Name(), len(available.Sub), len(available.Dub))
+		observability.Info(
+			"episodes_provider_availability_hit",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+				"provider": provider.Name(),
+				"sub":      len(available.Sub),
+				"dub":      len(available.Dub),
+			},
+		)
 		return available, provider.Name(), nil
 	}
 	return domain.EpisodeAvailability{}, "", fmt.Errorf("no episode availability provider matched anime_id=%d", anime.MalID)
@@ -143,14 +236,38 @@ func (s *EpisodeService) providerID(ctx context.Context, anime domain.Anime, pro
 	})
 	if err == nil {
 		if row.FailedUntil.Valid && row.FailedUntil.Time.After(s.clock.Now()) {
+			s.metrics.ObserveCache("episode_provider_mapping", "hit")
 			return "", fmt.Errorf("cached provider mapping failure active until %s: %s", row.FailedUntil.Time.Format(time.RFC3339), row.LastError)
 		}
 		if strings.TrimSpace(row.ProviderShowID) != "" {
-			log.Printf("episodes: provider id cache hit anime_id=%d provider=%s provider_id=%s", anime.MalID, provider.Name(), row.ProviderShowID)
+			s.metrics.ObserveCache("episode_provider_mapping", "hit")
+			observability.Info(
+				"episodes_provider_id_cache_hit",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id":    anime.MalID,
+					"provider":    provider.Name(),
+					"provider_id": row.ProviderShowID,
+				},
+			)
 			return row.ProviderShowID, nil
 		}
+		s.metrics.ObserveCache("episode_provider_mapping", "miss")
 	} else if !errors.Is(err, sql.ErrNoRows) {
-		log.Printf("episodes: provider id cache read failed anime_id=%d provider=%s error=%v", anime.MalID, provider.Name(), err)
+		s.metrics.ObserveCache("episode_provider_mapping", "miss")
+		observability.Warn(
+			"episodes_provider_id_cache_read_failed",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+				"provider": provider.Name(),
+			},
+			err,
+		)
+	} else {
+		s.metrics.ObserveCache("episode_provider_mapping", "miss")
 	}
 
 	providerID, err := provider.ResolveEpisodeProviderID(ctx, anime.MalID, titles)
@@ -173,20 +290,51 @@ func (s *EpisodeService) providerID(ctx context.Context, anime domain.Anime, pro
 		LastError:      "",
 	})
 	if err != nil {
-		log.Printf("episodes: provider id cache write failed anime_id=%d provider=%s error=%v", anime.MalID, provider.Name(), err)
+		observability.Warn(
+			"episodes_provider_id_cache_write_failed",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+				"provider": provider.Name(),
+			},
+			err,
+		)
 	}
-	log.Printf("episodes: provider id resolved anime_id=%d provider=%s provider_id=%s", anime.MalID, provider.Name(), providerID)
+	observability.Info(
+		"episodes_provider_id_resolved",
+		"episodes",
+		"",
+		map[string]any{
+			"anime_id":    anime.MalID,
+			"provider":    provider.Name(),
+			"provider_id": providerID,
+		},
+	)
 	return providerID, nil
 }
 
 func (s *EpisodeService) store(ctx context.Context, anime domain.Anime, jikanEpisodes []jikan.Episode, availability domain.EpisodeAvailability, source string, now time.Time, providerSuccess bool) (domain.CanonicalEpisodeList, error) {
-	nextRefresh := nextBroadcastAfter(anime, now)
 	var nextRefreshSQL sql.NullTime
-	if anime.Airing && !nextRefresh.IsZero() {
-		nextRefreshSQL = sql.NullTime{Time: nextRefresh, Valid: true}
+	if anime.Airing {
+		// During the hours immediately following a broadcast time, providers can lag.
+		// Keep retrying for a short window, even if the provider request succeeded.
+		lastBroadcast := nextBroadcastBeforeOrAt(anime, now)
+		if !lastBroadcast.IsZero() && now.Before(lastBroadcast.Add(retryWindow)) {
+			nextRefreshSQL = sql.NullTime{Time: now.Add(retryInterval).UTC(), Valid: true}
+		} else {
+			next := nextBroadcastAfter(anime, now)
+			if !next.IsZero() {
+				nextRefreshSQL = sql.NullTime{Time: next, Valid: true}
+			} else {
+				// Broadcast metadata is often missing or wrong for currently airing shows.
+				// Avoid "never refresh again" caches by falling back to a fixed interval.
+				nextRefreshSQL = sql.NullTime{Time: now.Add(airingFallbackRefreshInterval).UTC(), Valid: true}
+			}
+		}
 	}
 
-	episodes := mergeEpisodes(jikanEpisodes, availability)
+	episodes := mergeEpisodes(jikanEpisodes, availability, anime.Episodes)
 	payload := domain.CanonicalEpisodeList{
 		AnimeID:  anime.MalID,
 		Episodes: episodes,
@@ -217,11 +365,30 @@ func (s *EpisodeService) store(ctx context.Context, anime domain.Anime, jikanEpi
 		LastError:     "",
 	})
 	if err != nil {
-		log.Printf("episodes: cache write failed anime_id=%d source=%s error=%v", anime.MalID, source, err)
+		observability.Warn(
+			"episodes_cache_write_failed",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+				"source":   source,
+			},
+			err,
+		)
 		return payload, nil
 	}
 
-	log.Printf("episodes: refresh success anime_id=%d source=%s episodes=%d next_refresh=%s", anime.MalID, source, len(episodes), payload.NextRefreshAt)
+	observability.Info(
+		"episodes_refresh_success",
+		"episodes",
+		"",
+		map[string]any{
+			"anime_id":     anime.MalID,
+			"source":       source,
+			"episodes":     len(episodes),
+			"next_refresh": payload.NextRefreshAt,
+		},
+	)
 	return payload, nil
 }
 
@@ -239,7 +406,13 @@ func (s *EpisodeService) markFailure(ctx context.Context, anime domain.Anime, ca
 		nextSQL = sql.NullTime{Time: next, Valid: true}
 	}
 
-	err := s.queries.MarkEpisodeAvailabilityRefreshFailed(ctx, db.MarkEpisodeAvailabilityRefreshFailedParams{
+	writeCtx := ctx
+	if ctx.Err() != nil {
+		var cancel context.CancelFunc
+		writeCtx, cancel = context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+	}
+	err := s.queries.MarkEpisodeAvailabilityRefreshFailed(writeCtx, db.MarkEpisodeAvailabilityRefreshFailedParams{
 		LastAttemptAt: sql.NullTime{Time: now, Valid: true},
 		LastError:     truncate(cause.Error(), 400),
 		NextRefreshAt: nextSQL,
@@ -247,44 +420,146 @@ func (s *EpisodeService) markFailure(ctx context.Context, anime domain.Anime, ca
 		AnimeID:       int64(anime.MalID),
 	})
 	if err != nil {
-		log.Printf("episodes: failed to mark refresh failure anime_id=%d error=%v", anime.MalID, err)
+		observability.Warn(
+			"episodes_mark_failure_failed",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+			},
+			err,
+		)
 		return
 	}
-	log.Printf("episodes: refresh failure recorded anime_id=%d next_retry=%s error=%v", anime.MalID, next.Format(time.RFC3339), cause)
+	observability.Warn(
+		"episodes_refresh_failure_recorded",
+		"episodes",
+		"",
+		map[string]any{
+			"anime_id":   anime.MalID,
+			"next_retry": next.Format(time.RFC3339),
+		},
+		cause,
+	)
 }
 
 func (s *EpisodeService) getCached(ctx context.Context, animeID int) (domain.CanonicalEpisodeList, bool) {
 	row, err := s.queries.GetEpisodeAvailabilityCache(ctx, int64(animeID))
 	if err != nil {
+		s.metrics.ObserveCache("episode_availability", "miss")
 		return domain.CanonicalEpisodeList{}, false
 	}
 	var payload domain.CanonicalEpisodeList
 	if err := json.Unmarshal([]byte(row.Data), &payload); err != nil {
-		log.Printf("episodes: invalid cached payload anime_id=%d error=%v", animeID, err)
+		s.metrics.ObserveCache("episode_availability", "miss")
+		observability.Warn(
+			"episodes_cached_payload_invalid",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": animeID,
+			},
+			err,
+		)
 		return domain.CanonicalEpisodeList{}, false
 	}
+	s.metrics.ObserveCache("episode_availability", "hit")
 	return payload, true
 }
 
-func (s *EpisodeService) getFreshCached(ctx context.Context, animeID int) (domain.CanonicalEpisodeList, bool) {
-	row, err := s.queries.GetEpisodeAvailabilityCache(ctx, int64(animeID))
+func (s *EpisodeService) getFreshCached(ctx context.Context, anime domain.Anime) (domain.CanonicalEpisodeList, bool) {
+	row, err := s.queries.GetEpisodeAvailabilityCache(ctx, int64(anime.MalID))
 	if err != nil {
+		s.metrics.ObserveCache("episode_availability_fresh", "miss")
 		return domain.CanonicalEpisodeList{}, false
 	}
-	if row.NextRefreshAt.Valid && !row.NextRefreshAt.Time.After(s.clock.Now()) {
-		log.Printf("episodes: cached availability due for refresh anime_id=%d next_refresh=%s", animeID, row.NextRefreshAt.Time.Format(time.RFC3339))
+
+	now := s.clock.Now()
+	if row.NextRefreshAt.Valid && !row.NextRefreshAt.Time.After(now) {
+		s.metrics.ObserveCache("episode_availability_fresh", "miss")
+		observability.Info(
+			"episodes_cache_due_for_refresh",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id":     anime.MalID,
+				"next_refresh": row.NextRefreshAt.Time.Format(time.RFC3339),
+			},
+		)
+		return domain.CanonicalEpisodeList{}, false
+	}
+
+	if anime.Airing && row.UpdatedAt.Before(now.Add(-airingFallbackRefreshInterval)) {
+		s.metrics.ObserveCache("episode_availability_fresh", "miss")
+		observability.Info(
+			"episodes_cache_too_old_for_airing",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id":   anime.MalID,
+				"updated_at": row.UpdatedAt.Format(time.RFC3339),
+			},
+		)
 		return domain.CanonicalEpisodeList{}, false
 	}
 
 	var payload domain.CanonicalEpisodeList
 	if err := json.Unmarshal([]byte(row.Data), &payload); err != nil {
-		log.Printf("episodes: invalid cached payload anime_id=%d error=%v", animeID, err)
+		s.metrics.ObserveCache("episode_availability_fresh", "miss")
+		observability.Warn(
+			"episodes_cached_payload_invalid",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+			},
+			err,
+		)
 		return domain.CanonicalEpisodeList{}, false
 	}
-	log.Printf("episodes: served cached availability anime_id=%d episodes=%d next_refresh=%s", animeID, len(payload.Episodes), payload.NextRefreshAt)
+	if !isCanonicalEpisodePayloadValid(payload, anime.Episodes) {
+		s.metrics.ObserveCache("episode_availability_fresh", "miss")
+		observability.Info(
+			"episodes_cached_payload_rejected",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id":        anime.MalID,
+				"expected_count":  anime.Episodes,
+				"cached_episodes": len(payload.Episodes),
+			},
+		)
+		return domain.CanonicalEpisodeList{}, false
+	}
+	s.metrics.ObserveCache("episode_availability_fresh", "hit")
+	observability.Info(
+		"episodes_cache_served",
+		"episodes",
+		"",
+		map[string]any{
+			"anime_id":     anime.MalID,
+			"episodes":     len(payload.Episodes),
+			"next_refresh": payload.NextRefreshAt,
+		},
+	)
 	return payload, true
 }
 
+func isCanonicalEpisodePayloadValid(payload domain.CanonicalEpisodeList, expectedCount int) bool {
+	if expectedCount <= 0 {
+		return true
+	}
+	if len(payload.Episodes) > expectedCount {
+		return false
+	}
+	for _, episode := range payload.Episodes {
+		if episode.Number <= 0 || episode.Number > expectedCount {
+			return false
+		}
+	}
+	return true
+}
+
 func (s *EpisodeService) jikanOnly(ctx context.Context, anime domain.Anime, source string) (domain.CanonicalEpisodeList, error) {
 	episodes, err := s.jikan.GetAllEpisodes(ctx, anime.MalID)
 	if err != nil {
@@ -292,7 +567,7 @@ func (s *EpisodeService) jikanOnly(ctx context.Context, anime domain.Anime, sour
 	}
 	return domain.CanonicalEpisodeList{
 		AnimeID:  anime.MalID,
-		Episodes: mergeEpisodes(episodes, domain.EpisodeAvailability{}),
+		Episodes: mergeEpisodes(episodes, domain.EpisodeAvailability{}, anime.Episodes),
 		Source:   source,
 	}, nil
 }
@@ -313,7 +588,7 @@ func titleCandidates(anime domain.Anime) []string {
 	return out
 }
 
-func mergeEpisodes(jikanEpisodes []jikan.Episode, availability domain.EpisodeAvailability) []domain.CanonicalEpisode {
+func mergeEpisodes(jikanEpisodes []jikan.Episode, availability domain.EpisodeAvailability, expectedCount int) []domain.CanonicalEpisode {
 	type partial struct {
 		title  string
 		filler bool
@@ -323,18 +598,22 @@ func mergeEpisodes(jikanEpisodes []jikan.Episode, availability domain.EpisodeAva
 	}
 	byNumber := map[int]partial{}
 
-	for _, ep := range jikanEpisodes {
-		if ep.MalID <= 0 {
+	for i, ep := range jikanEpisodes {
+		if expectedCount > 0 && i >= expectedCount {
+			break
+		}
+		number, ok := jikanEpisodeNumber(ep, i)
+		if !ok || exceedsExpectedCount(number, expectedCount) {
 			continue
 		}
-		item := byNumber[ep.MalID]
+		item := byNumber[number]
 		item.title = strings.TrimSpace(ep.Title)
 		item.filler = ep.Filler
 		item.recap = ep.Recap
-		byNumber[ep.MalID] = item
+		byNumber[number] = item
 	}
 	for _, n := range availability.Sub {
-		if n <= 0 {
+		if n <= 0 || exceedsExpectedCount(n, expectedCount) {
 			continue
 		}
 		item := byNumber[n]
@@ -342,7 +621,7 @@ func mergeEpisodes(jikanEpisodes []jikan.Episode, availability domain.EpisodeAva
 		byNumber[n] = item
 	}
 	for _, n := range availability.Dub {
-		if n <= 0 {
+		if n <= 0 || exceedsExpectedCount(n, expectedCount) {
 			continue
 		}
 		item := byNumber[n]
@@ -376,6 +655,21 @@ func mergeEpisodes(jikanEpisodes []jikan.Episode, availability domain.EpisodeAva
 	return episodes
 }
 
+func jikanEpisodeNumber(ep jikan.Episode, index int) (int, bool) {
+	number, err := strconv.Atoi(strings.TrimSpace(ep.Episode))
+	if err == nil && number > 0 {
+		return number, true
+	}
+	if index < 0 {
+		return 0, false
+	}
+	return index + 1, true
+}
+
+func exceedsExpectedCount(number int, expectedCount int) bool {
+	return expectedCount > 0 && number > expectedCount
+}
+
 func nextRetryTime(anime domain.Anime, now time.Time) time.Time {
 	broadcast := nextBroadcastBeforeOrAt(anime, now)
 	if broadcast.IsZero() || now.After(broadcast.Add(retryWindow)) {
@@ -403,13 +697,31 @@ func nextBroadcastAfter(anime domain.Anime, after time.Time) time.Time {
 		if loaded, err := time.LoadLocation(tz); err == nil {
 			loc = loaded
 		} else {
-			log.Printf("episodes: failed to parse broadcast timezone anime_id=%d timezone=%q error=%v", anime.MalID, tz, err)
+			observability.Warn(
+				"episodes_broadcast_timezone_parse_failed",
+				"episodes",
+				"",
+				map[string]any{
+					"anime_id": anime.MalID,
+					"timezone": tz,
+				},
+				err,
+			)
 		}
 	}
 
 	hour, minute, ok := parseBroadcastTime(anime.Broadcast.Time)
 	if !ok {
-		log.Printf("episodes: failed to parse broadcast time anime_id=%d time=%q", anime.MalID, anime.Broadcast.Time)
+		observability.Warn(
+			"episodes_broadcast_time_parse_failed",
+			"episodes",
+			"",
+			map[string]any{
+				"anime_id": anime.MalID,
+				"time":     anime.Broadcast.Time,
+			},
+			nil,
+		)
 		return time.Time{}
 	}
 

internal/episodes/service/service_test.go

@@ -9,13 +9,13 @@ import (
 
 func TestMergeEpisodesUsesUnionAndSynthesizesProviderOnlyEntries(t *testing.T) {
 	episodes := mergeEpisodes([]jikan.Episode{
-		{MalID: 1, Title: "Start"},
-		{MalID: 2, Title: "Second", Filler: true},
-		{MalID: 5, Title: "Future", Recap: true},
+		{MalID: 101, Episode: "1", Title: "Start"},
+		{MalID: 102, Episode: "2", Title: "Second", Filler: true},
+		{MalID: 105, Episode: "5", Title: "Future", Recap: true},
 	}, domain.EpisodeAvailability{
 		Sub: []int{1, 2, 3, 6},
 		Dub: []int{1, 2, 3},
-	})
+	}, 0)
 
 	if len(episodes) != 5 {
 		t.Fatalf("len(episodes) = %d, want 5", len(episodes))
@@ -28,8 +28,66 @@ func TestMergeEpisodesUsesUnionAndSynthesizesProviderOnlyEntries(t *testing.T) {
 	assertEpisode(t, episodes[4], 6, "Episode 6", true, false, true, false, false)
 }
 
+func TestMergeEpisodesIgnoresInvalidJikanEpisodeNumbers(t *testing.T) {
+	episodes := mergeEpisodes([]jikan.Episode{
+		{MalID: 201, Episode: "", Title: "Missing"},
+		{MalID: 202, Episode: "Preview", Title: "Preview"},
+		{MalID: 203, Episode: "0", Title: "Zero"},
+	}, domain.EpisodeAvailability{}, 0)
+
+	if len(episodes) != 3 {
+		t.Fatalf("len(episodes) = %d, want 3", len(episodes))
+	}
+
+	assertEpisode(t, episodes[0], 1, "Missing", false, false, false, false, false)
+	assertEpisode(t, episodes[1], 2, "Preview", false, false, false, false, false)
+	assertEpisode(t, episodes[2], 3, "Zero", false, false, false, false, false)
+}
+
+func TestMergeEpisodesCapsMalformedJikanListsToDeclaredEpisodeCount(t *testing.T) {
+	episodes := mergeEpisodes([]jikan.Episode{
+		{MalID: 301, Episode: "", Title: "Rimuru's Busy Life"},
+		{MalID: 302, Episode: "", Title: "Trade with the Animal Kingdom"},
+		{MalID: 303, Episode: "", Title: "Paradise, Once More"},
+		{MalID: 304, Episode: "", Title: "The Scheming Kingdom of Falmuth"},
+		{MalID: 305, Episode: "", Title: "Prelude to the Disaster"},
+		{MalID: 306, Episode: "", Title: "The Beauty Makes Her Move"},
+		{MalID: 307, Episode: "", Title: "Despair"},
+		{MalID: 308, Episode: "", Title: "Hope"},
+		{MalID: 309, Episode: "", Title: "Putting Everything on the Line"},
+		{MalID: 310, Episode: "", Title: "Megiddo"},
+		{MalID: 311, Episode: "", Title: "Birth of a Demon Lord"},
+		{MalID: 312, Episode: "", Title: "The One Unleashed"},
+		{MalID: 313, Episode: "", Title: "The Visitors"},
+	}, domain.EpisodeAvailability{
+		Sub: []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13},
+		Dub: []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13},
+	}, 12)
+
+	if len(episodes) != 12 {
+		t.Fatalf("len(episodes) = %d, want 12", len(episodes))
+	}
+
+	assertEpisode(t, episodes[0], 1, "Rimuru's Busy Life", true, true, false, false, false)
+	assertEpisode(t, episodes[11], 12, "The One Unleashed", true, true, false, false, false)
+}
+
+func TestIsCanonicalEpisodePayloadValidRejectsOverflowingCachedPayload(t *testing.T) {
+	payload := domain.CanonicalEpisodeList{
+		Episodes: []domain.CanonicalEpisode{
+			{Number: 1, Title: "Episode 1"},
+			{Number: 2, Title: "Episode 2"},
+			{Number: 13, Title: "Episode 13"},
+		},
+	}
+
+	if isCanonicalEpisodePayloadValid(payload, 12) {
+		t.Fatal("expected cached payload to be rejected")
+	}
+}
+
 func TestNextBroadcastAfterUsesJikanTimezone(t *testing.T) {
-	anime := domain.Anime{MalID: 1}
+	anime := domain.Anime{Anime: jikan.Anime{MalID: 1}}
 	anime.Broadcast.Day = "Saturdays"
 	anime.Broadcast.Time = "23:00"
 	anime.Broadcast.Timezone = "Asia/Tokyo"
@@ -44,7 +102,7 @@ func TestNextBroadcastAfterUsesJikanTimezone(t *testing.T) {
 }
 
 func TestNextRetryTimeWithinAndAfterRetryWindow(t *testing.T) {
-	anime := domain.Anime{MalID: 1}
+	anime := domain.Anime{Anime: jikan.Anime{MalID: 1}}
 	anime.Broadcast.Day = "Saturdays"
 	anime.Broadcast.Time = "12:00"
 	anime.Broadcast.Timezone = "UTC"

internal/episodes/worker.go

@@ -2,8 +2,8 @@ package episodes
 
 import (
 	"context"
-	"log"
 	"mal/internal/domain"
+	"mal/internal/observability"
 	"time"
 
 	"go.uber.org/fx"
@@ -11,25 +11,44 @@ import (
 
 const workerInterval = time.Minute
 
-func RegisterWorker(lc fx.Lifecycle, svc domain.EpisodeService) {
+func RegisterWorker(lc fx.Lifecycle, svc domain.EpisodeService, metrics *observability.Metrics) {
 	ctx, cancel := context.WithCancel(context.Background())
 
 	lc.Append(fx.Hook{
-		OnStart: func(context.Context) error {
+		OnStart: func(startCtx context.Context) error {
+			// Tie worker lifetime to fx lifecycle start context cancellation.
 			go func() {
-				log.Println("episodes: availability worker started")
+				<-startCtx.Done()
+				cancel()
+			}()
+			go func() {
+				observability.Info("episodes_worker_start", "episodes", "", nil)
 				ticker := time.NewTicker(workerInterval)
 				defer ticker.Stop()
 
 				for {
-					if err := svc.RefreshTrackedDue(ctx, 25); err != nil {
-						log.Printf("episodes: availability worker tick failed error=%v", err)
+					tickCtx, tickCancel := context.WithTimeout(ctx, 45*time.Second)
+					err := svc.RefreshTrackedDue(tickCtx, 25)
+					tickCancel()
+					if err != nil {
+						metrics.ObserveWorkerTick("episodes_availability", err)
+						observability.Warn(
+							"episodes_worker_tick_failed",
+							"episodes",
+							"",
+							map[string]any{
+								"worker": "episodes_availability",
+							},
+							err,
+						)
+					} else {
+						metrics.ObserveWorkerTick("episodes_availability", nil)
 					}
 
 					select {
 					case <-ticker.C:
 					case <-ctx.Done():
-						log.Println("episodes: availability worker stopped")
+						observability.Info("episodes_worker_stop", "episodes", "", nil)
 						return
 					}
 				}

internal/observability/helpers.go

@@ -0,0 +1,15 @@
+package observability
+
+// Small helpers to keep logging consistent and low-friction across the codebase.
+
+func Info(event string, component string, message string, fields map[string]any) {
+	LogJSON(LogLevelInfo, event, component, message, fields, nil)
+}
+
+func Warn(event string, component string, message string, fields map[string]any, err error) {
+	LogJSON(LogLevelWarn, event, component, message, fields, err)
+}
+
+func Error(event string, component string, message string, fields map[string]any, err error) {
+	LogJSON(LogLevelError, event, component, message, fields, err)
+}

internal/observability/log.go

@@ -0,0 +1,59 @@
+// Package observability provides logging and metrics instrumentation.
+package observability
+
+import (
+	"encoding/json"
+	"log"
+	"time"
+)
+
+type LogLevel string
+
+const (
+	LogLevelInfo  LogLevel = "info"
+	LogLevelWarn  LogLevel = "warn"
+	LogLevelError LogLevel = "error"
+)
+
+type LogEvent struct {
+	TS        string         `json:"ts"`
+	Level     LogLevel       `json:"level"`
+	Event     string         `json:"event"`
+	Message   string         `json:"message,omitempty"`
+	Fields    map[string]any `json:"fields,omitempty"`
+	Error     string         `json:"error,omitempty"`
+	Component string         `json:"component,omitempty"`
+}
+
+func LogJSON(level LogLevel, event string, component string, message string, fields map[string]any, err error) {
+	errorValue := ""
+	if err != nil {
+		errorValue = err.Error()
+	}
+
+	entry := LogEvent{
+		TS:        time.Now().UTC().Format(time.RFC3339Nano),
+		Level:     level,
+		Event:     event,
+		Message:   message,
+		Fields:    fields,
+		Error:     errorValue,
+		Component: component,
+	}
+
+	// Best-effort. If encoding fails, fall back to a minimal line.
+	bytes, marshalErr := json.Marshal(entry)
+	if marshalErr != nil {
+		// Keep output JSON-only even on failures by constructing a minimal entry.
+		// Marshal individual strings to ensure proper escaping.
+		tsBytes, _ := json.Marshal(time.Now().UTC().Format(time.RFC3339Nano))
+		levelBytes, _ := json.Marshal(level)
+		eventBytes, _ := json.Marshal("log_marshal_failed")
+		componentBytes, _ := json.Marshal(component)
+		errBytes, _ := json.Marshal(marshalErr.Error())
+		log.Printf(`{"ts":%s,"level":%s,"event":%s,"component":%s,"error":%s}`, tsBytes, levelBytes, eventBytes, componentBytes, errBytes)
+		return
+	}
+
+	log.Print(string(bytes))
+}

internal/observability/metrics.go

@@ -0,0 +1,297 @@
+package observability
+
+import (
+	"fmt"
+	"maps"
+	"net/http"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+var defaultDurationBuckets = []float64{
+	0.005,
+	0.01,
+	0.025,
+	0.05,
+	0.1,
+	0.25,
+	0.5,
+	1,
+	2.5,
+	5,
+	10,
+}
+
+type counterSample struct {
+	labels map[string]string
+	value  uint64
+}
+
+type histogramSample struct {
+	labels  map[string]string
+	buckets []uint64
+	count   uint64
+	sum     float64
+}
+
+type counterVec struct {
+	mu         sync.Mutex
+	labelNames []string
+	samples    map[string]*counterSample
+}
+
+type histogramVec struct {
+	mu         sync.Mutex
+	labelNames []string
+	bounds     []float64
+	samples    map[string]*histogramSample
+}
+
+type Metrics struct {
+	httpRequests       *counterVec
+	httpRequestLatency *histogramVec
+	jikanRequests      *counterVec
+	jikanRequestErrors *counterVec
+	jikanLatency       *histogramVec
+	workerTicks        *counterVec
+	cacheOperations    *counterVec
+}
+
+func NewMetrics() *Metrics {
+	return &Metrics{
+		httpRequests:       newCounterVec("method", "route", "status"),
+		httpRequestLatency: newHistogramVec(defaultDurationBuckets, "method", "route", "status"),
+		jikanRequests:      newCounterVec("endpoint", "status"),
+		jikanRequestErrors: newCounterVec("endpoint", "status"),
+		jikanLatency:       newHistogramVec(defaultDurationBuckets, "endpoint", "status"),
+		workerTicks:        newCounterVec("worker", "result"),
+		cacheOperations:    newCounterVec("cache", "result"),
+	}
+}
+
+func (m *Metrics) Handler() http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/plain; version=0.0.4; charset=utf-8")
+		w.WriteHeader(http.StatusOK)
+		m.writePrometheus(w)
+	})
+}
+
+func (m *Metrics) ObserveHTTPRequest(method string, route string, status int, duration time.Duration) {
+	statusLabel := strconv.Itoa(status)
+	m.httpRequests.Inc(method, route, statusLabel)
+	m.httpRequestLatency.Observe(duration.Seconds(), method, route, statusLabel)
+}
+
+func (m *Metrics) ObserveJikanRequest(endpoint string, status int, duration time.Duration, err error) {
+	statusLabel := strconv.Itoa(status)
+	m.jikanRequests.Inc(endpoint, statusLabel)
+	m.jikanLatency.Observe(duration.Seconds(), endpoint, statusLabel)
+	if err != nil || status >= http.StatusBadRequest {
+		m.jikanRequestErrors.Inc(endpoint, statusLabel)
+	}
+}
+
+func (m *Metrics) ObserveWorkerTick(worker string, err error) {
+	if err != nil {
+		m.workerTicks.Inc(worker, "failure")
+		return
+	}
+	m.workerTicks.Inc(worker, "success")
+}
+
+func (m *Metrics) ObserveCache(cache string, result string) {
+	m.cacheOperations.Inc(cache, result)
+}
+
+func (m *Metrics) writePrometheus(w http.ResponseWriter) {
+	writeCounterMetric(w, "mal_http_requests_total", "Total HTTP requests by method, route, and status.", m.httpRequests.snapshot())
+	writeHistogramMetric(w, "mal_http_request_duration_seconds", "HTTP request latency in seconds.", m.httpRequestLatency.snapshot(), m.httpRequestLatency.bounds)
+	writeCounterMetric(w, "mal_jikan_upstream_requests_total", "Total upstream Jikan requests by endpoint and status.", m.jikanRequests.snapshot())
+	writeCounterMetric(w, "mal_jikan_upstream_errors_total", "Total upstream Jikan errors by endpoint and status.", m.jikanRequestErrors.snapshot())
+	writeHistogramMetric(w, "mal_jikan_upstream_request_duration_seconds", "Upstream Jikan request latency in seconds.", m.jikanLatency.snapshot(), m.jikanLatency.bounds)
+	writeCounterMetric(w, "mal_worker_ticks_total", "Total background worker ticks by worker and result.", m.workerTicks.snapshot())
+	writeCounterMetric(w, "mal_cache_operations_total", "Total cache hits and misses by cache name.", m.cacheOperations.snapshot())
+}
+
+func newCounterVec(labelNames ...string) *counterVec {
+	return &counterVec{
+		labelNames: append([]string(nil), labelNames...),
+		samples:    make(map[string]*counterSample),
+	}
+}
+
+func (c *counterVec) Inc(labelValues ...string) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	key, labels := buildLabelKey(c.labelNames, labelValues)
+	if labels == nil {
+		return
+	}
+	sample, ok := c.samples[key]
+	if !ok {
+		sample = &counterSample{labels: labels}
+		c.samples[key] = sample
+	}
+	sample.value++
+}
+
+func (c *counterVec) snapshot() []counterSample {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	keys := sortedCounterSampleKeys(c.samples)
+	out := make([]counterSample, 0, len(keys))
+	for _, key := range keys {
+		sample := c.samples[key]
+		out = append(out, counterSample{
+			labels: copyLabels(sample.labels),
+			value:  sample.value,
+		})
+	}
+	return out
+}
+
+func newHistogramVec(bounds []float64, labelNames ...string) *histogramVec {
+	return &histogramVec{
+		labelNames: append([]string(nil), labelNames...),
+		bounds:     append([]float64(nil), bounds...),
+		samples:    make(map[string]*histogramSample),
+	}
+}
+
+func (h *histogramVec) Observe(value float64, labelValues ...string) {
+	h.mu.Lock()
+	defer h.mu.Unlock()
+
+	key, labels := buildLabelKey(h.labelNames, labelValues)
+	if labels == nil {
+		return
+	}
+	sample, ok := h.samples[key]
+	if !ok {
+		sample = &histogramSample{
+			labels:  labels,
+			buckets: make([]uint64, len(h.bounds)),
+		}
+		h.samples[key] = sample
+	}
+
+	sample.count++
+	sample.sum += value
+	for idx, bound := range h.bounds {
+		if value <= bound {
+			sample.buckets[idx]++
+		}
+	}
+}
+
+func (h *histogramVec) snapshot() []histogramSample {
+	h.mu.Lock()
+	defer h.mu.Unlock()
+
+	keys := sortedHistogramSampleKeys(h.samples)
+	out := make([]histogramSample, 0, len(keys))
+	for _, key := range keys {
+		sample := h.samples[key]
+		buckets := make([]uint64, len(sample.buckets))
+		copy(buckets, sample.buckets)
+		out = append(out, histogramSample{
+			labels:  copyLabels(sample.labels),
+			buckets: buckets,
+			count:   sample.count,
+			sum:     sample.sum,
+		})
+	}
+	return out
+}
+
+func buildLabelKey(labelNames []string, labelValues []string) (string, map[string]string) {
+	if len(labelNames) != len(labelValues) {
+		return "", nil
+	}
+
+	labels := make(map[string]string, len(labelNames))
+	parts := make([]string, 0, len(labelNames)*2)
+	for idx, name := range labelNames {
+		value := labelValues[idx]
+		labels[name] = value
+		parts = append(parts, name, value)
+	}
+	return strings.Join(parts, "\xff"), labels
+}
+
+func copyLabels(labels map[string]string) map[string]string {
+	out := make(map[string]string, len(labels))
+	maps.Copy(out, labels)
+	return out
+}
+
+func sortedCounterSampleKeys(samples map[string]*counterSample) []string {
+	keys := make([]string, 0, len(samples))
+	for key := range samples {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+func sortedHistogramSampleKeys(samples map[string]*histogramSample) []string {
+	keys := make([]string, 0, len(samples))
+	for key := range samples {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+func writeCounterMetric(w http.ResponseWriter, name string, help string, samples []counterSample) {
+	_, _ = fmt.Fprintf(w, "# HELP %s %s\n", name, help)
+	_, _ = fmt.Fprintf(w, "# TYPE %s counter\n", name)
+	for _, sample := range samples {
+		_, _ = fmt.Fprintf(w, "%s%s %d\n", name, formatLabels(sample.labels), sample.value)
+	}
+}
+
+func writeHistogramMetric(w http.ResponseWriter, name string, help string, samples []histogramSample, bounds []float64) {
+	_, _ = fmt.Fprintf(w, "# HELP %s %s\n", name, help)
+	_, _ = fmt.Fprintf(w, "# TYPE %s histogram\n", name)
+	for _, sample := range samples {
+		for idx, bound := range bounds {
+			labels := copyLabels(sample.labels)
+			labels["le"] = formatFloat(bound)
+			_, _ = fmt.Fprintf(w, "%s_bucket%s %d\n", name, formatLabels(labels), sample.buckets[idx])
+		}
+		labels := copyLabels(sample.labels)
+		labels["le"] = "+Inf"
+		_, _ = fmt.Fprintf(w, "%s_bucket%s %d\n", name, formatLabels(labels), sample.count)
+		_, _ = fmt.Fprintf(w, "%s_sum%s %s\n", name, formatLabels(sample.labels), formatFloat(sample.sum))
+		_, _ = fmt.Fprintf(w, "%s_count%s %d\n", name, formatLabels(sample.labels), sample.count)
+	}
+}
+
+func formatLabels(labels map[string]string) string {
+	if len(labels) == 0 {
+		return ""
+	}
+
+	keys := make([]string, 0, len(labels))
+	for key := range labels {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+
+	parts := make([]string, 0, len(keys))
+	for _, key := range keys {
+		parts = append(parts, fmt.Sprintf(`%s=%q`, key, labels[key]))
+	}
+	return "{" + strings.Join(parts, ",") + "}"
+}
+
+func formatFloat(value float64) string {
+	return strconv.FormatFloat(value, 'f', -1, 64)
+}

internal/observability/metrics_test.go

@@ -0,0 +1,47 @@
+package observability
+
+import (
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestMetricsHandlerRendersPrometheusFamilies(t *testing.T) {
+	metrics := NewMetrics()
+	metrics.ObserveHTTPRequest(http.MethodGet, "/anime/:id", http.StatusOK, 125*time.Millisecond)
+	metrics.ObserveJikanRequest("/anime/{id}", http.StatusTooManyRequests, 800*time.Millisecond, assertErr{})
+	metrics.ObserveWorkerTick("episodes_availability", nil)
+	metrics.ObserveCache("jikan", "hit")
+	metrics.ObserveCache("episode_availability", "miss")
+
+	req := httptest.NewRequest(http.MethodGet, "/metrics", nil)
+	rec := httptest.NewRecorder()
+	metrics.Handler().ServeHTTP(rec, req)
+
+	body, err := io.ReadAll(rec.Result().Body)
+	if err != nil {
+		t.Fatalf("read body: %v", err)
+	}
+
+	text := string(body)
+	assertContains(t, text, `mal_http_requests_total{method="GET",route="/anime/:id",status="200"} 1`)
+	assertContains(t, text, `mal_http_request_duration_seconds_count{method="GET",route="/anime/:id",status="200"} 1`)
+	assertContains(t, text, `mal_jikan_upstream_requests_total{endpoint="/anime/{id}",status="429"} 1`)
+	assertContains(t, text, `mal_jikan_upstream_errors_total{endpoint="/anime/{id}",status="429"} 1`)
+	assertContains(t, text, `mal_worker_ticks_total{result="success",worker="episodes_availability"} 1`)
+	assertContains(t, text, `mal_cache_operations_total{cache="episode_availability",result="miss"} 1`)
+}
+
+type assertErr struct{}
+
+func (assertErr) Error() string { return "boom" }
+
+func assertContains(t *testing.T, text string, want string) {
+	t.Helper()
+	if !strings.Contains(text, want) {
+		t.Fatalf("missing metric line %q in:\n%s", want, text)
+	}
+}