test: add playwright e2e test setup with smoke tests

playwright.config.ts

@@ -0,0 +1,27 @@
+import { defineConfig, devices } from "@playwright/test";
+
+const port = process.env.PORT ?? "3100";
+const baseURL = process.env.PLAYWRIGHT_BASE_URL ?? `http://127.0.0.1:${port}`;
+
+export default defineConfig({
+  testDir: "./tests/e2e",
+  testMatch: "**/*.e2e.ts",
+  timeout: 30_000,
+  expect: { timeout: 5000 },
+  fullyParallel: true,
+  reporter: process.env.CI === undefined ? "list" : "github",
+  use: { baseURL, trace: "retain-on-failure" },
+  webServer:
+    process.env.PLAYWRIGHT_BASE_URL === undefined
+      ? {
+          command: `PORT=${port} DATABASE_FILE=/tmp/mal-e2e.db GIN_MODE=test go run ./cmd/server`,
+          url: baseURL,
+          reuseExistingServer: process.env.CI === undefined,
+          timeout: 120_000,
+        }
+      : undefined,
+  projects: [
+    { name: "chromium", use: { ...devices["Desktop Chrome"] } },
+    { name: "mobile", use: { ...devices["Pixel 5"] } },
+  ],
+});