feat(sentry): integrate Sentry SDK with Next.js and configure DSN

- Added Sentry client, server, and edge configurations for enhanced error monitoring.
- Updated `.env.example` and `docker-compose` to include `NEXT_PUBLIC_SENTRY_DSN`.
- Modified `next.config.ts` to use `withSentryConfig` for source map uploads.
- Installed `@sentry/nextjs` as a dependency and updated `pnpm-lock.yaml`.

frontend/package.json

@@ -38,6 +38,7 @@
 		"@radix-ui/react-toggle": "^1.1.10",
 		"@radix-ui/react-toggle-group": "^1.1.11",
 		"@radix-ui/react-tooltip": "^1.2.8",
+		"@sentry/nextjs": "^10.38.0",
 		"axios": "^1.13.2",
 		"class-variance-authority": "^0.7.1",
 		"clsx": "^2.1.1",