feat: integrate Sentry + fix CI/CD issues

Sentry Integration (補強 SignOz):
- Add @sentry/nextjs for frontend error tracking + session replay
- Add sentry-sdk[fastapi] for backend error tracking
- Create sentry.client/server/edge.config.ts
- Integrate with next.config.js + instrumentation.ts
- Add Sentry exception capture in FastAPI error handler
- Create deployment scripts for Self-Hosted @ 192.168.0.110

CI/CD Fixes:
- Fix F821 Undefined name 'Field' in incidents.py
- Add NEXT_PUBLIC_API_URL env var to CI build step
- Add build-arg to Docker build verification

E2E Test Improvements:
- Fix strict mode violations in dashboard-acceptance tests
- Add timeout increase for Phase 4 demo tests
- Make tests more resilient to UI variations

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/package.json

@@ -11,6 +11,7 @@
   },
   "dependencies": {
     "@awoooi/lewooogo-core": "workspace:*",
+    "@sentry/nextjs": "^10.45.0",
     "@tanstack/react-query": "^5.17.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.0",