feat: setup goose and database module

internal/database/migrations/014_add_watchlist_statuses.sql

@@ -0,0 +1,26 @@
+-- Add "watching" and "on_hold" to the valid statuses for watch_list_entry
+
+PRAGMA foreign_keys=OFF;
+
+ALTER TABLE watch_list_entry RENAME TO watch_list_entry_old;
+
+CREATE TABLE IF NOT EXISTS watch_list_entry (
+    id TEXT PRIMARY KEY,
+    user_id TEXT NOT NULL REFERENCES user(id) ON DELETE CASCADE,
+    anime_id INTEGER NOT NULL REFERENCES anime(id) ON DELETE CASCADE,
+    status TEXT NOT NULL CHECK(status IN ('watching', 'completed', 'dropped', 'plan_to_watch', 'on_hold')),
+    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    current_episode INTEGER DEFAULT 0,
+    last_episode_at DATETIME,
+    current_time_seconds REAL NOT NULL DEFAULT 0,
+    UNIQUE(user_id, anime_id)
+);
+
+INSERT OR IGNORE INTO watch_list_entry (id, user_id, anime_id, status, created_at, updated_at, current_episode, last_episode_at, current_time_seconds)
+SELECT id, user_id, anime_id, status, created_at, updated_at, current_episode, last_episode_at, current_time_seconds
+FROM watch_list_entry_old;
+
+DROP TABLE watch_list_entry_old;
+
+PRAGMA foreign_keys=ON;