sync: stale skill detection, sentry filtering, claim removal, review improvements

Stale Detection:
- Detect skills removed/moved from GitHub (3 consecutive 404s threshold)
- Hide stale skills from browse/search, show warning banner on detail page
- Serve cached files with isStale flag when GitHub returns 404
- Add stale-check crawler command for batch verification
- CLI shows warning when installing stale skills from cache

Sentry & Error Handling:
- Filter browser extension errors and add denyUrls
- Anti-inflation measures and sentinel recalibration for curation

Claim & Removal:
- Enhanced ClaimForm with repo-level removal support
- Add repo-removal-request API endpoint with tests
- Improved owner page with bilingual content

Review Pipeline:
- Review version and reviewer tracking in submit API
- Source format filter for pending reviews
- Updated review tests

Other:
- Updated i18n strings (en/fa)
- BrowseFilters improvements
- Dockerfile updates

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

apps/web/app/[locale]/browse/page.tsx

@@ -186,7 +186,7 @@ export default async function BrowsePage({ params, searchParams }: BrowsePagePro
 
   const emptyStateTranslations = {
     noResults: t('noResults') || 'No skills found',
-    noResultsWithQuery: t('noResultsWithQuery') || 'No results for "{query}"',
+    noResultsWithQuery: t('noResultsWithQuery', { query: searchParamsResolved.q || '' }),
     tryDifferent: t('emptyState.tryDifferent') || 'Try different search terms or adjust your filters',
     clearFilters: t('emptyState.clearFilters') || 'Clear filters',
     browseAll: t('emptyState.browseAll') || 'Browse Featured Skills',