sync: Redis caching, progress bar rewrite, sentry filtering, UI improvements

- Add Redis caching to all pages and uncached API routes
- Rewrite progress bar with direct DOM manipulation for search/filters/navigation
- Filter generic network errors from Sentry client reporting
- Fix non-null assertion for repo.owner in popular-repos strategy
- Remove next-nprogress-bar dependency

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/package.json

@@ -27,8 +27,7 @@
     "next": "^15.0.0",
     "next-auth": "5.0.0-beta.30",
     "next-intl": "^3.4.0",
-    "next-nprogress-bar": "^2.4.7",
-    "next-themes": "^0.4.4",
+"next-themes": "^0.4.4",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "resend": "^6.9.1",