What's Changed

• release: v2.5.1 — batch FRED, parallel UCDP, partial cache TTL, bot middleware
• fix: derive cache headers from partial flag on cache hits & widen Load failed filter
• fix: use per-entry TTL for UCDP fallbackCache to expire partial results in 10m
• fix: harden API routes, batch FRED requests, and sanitize tooltip HTML
• perf: add bot protection middleware and robots.txt to reduce API abuse
• refactor: extract duplicate layerToSource mapping to LAYER_TO_SOURCE config constant
• perf: reduce Vercel costs — extend API cache TTLs and skip non-code builds
• fix: shared fetch abort isolation and USNI vessel augmentation
• fix: stabilize E2E tests and fix InvestmentsPanel event delegation
• fix: add Sentry noise filter for Android WebView bridge errors
• fix: suppress maplibre-internal TypeErrors in Sentry beforeSend
• refactor: replace innerHTML with programmatic DOM via h() hyperscript
• feat: abort in-flight fetch requests on panel destroy and page hide
• fix: update Sentry noise filters for Safari fullscreen and deck.gl null id
• perf: move inline panel styles to panels.css, loaded once via main.css (PERF-012) (#154)
• perf: split i18next, sentry, and panels into separate chunks
• fix(sidecar): deduplicate Vary header tokens with appendVary helper
• fix: use graph edges for infra cascade capacity instead of hardcoded 0.1
• Add IndexedDB-backed persistent API caching
• fix: widen SW globIgnore to exclude all ML JS chunks
• feat: integrate USNI fleet tracker and add parser tests
• Add Brotli-first API compression for sidecar and nginx
• Track missing backend feeds in data freshness
• fix: scope videoId and isLive to same videoDetails block
• fix: harden map fallback and add regression coverage
• Debounce panel content updates to reduce rerenders
• Add build-time Brotli precompression for static assets
• Fix deep-link polling retries and timeout error
• Handle per-cluster render failures in NewsPanel
• docs(runtime): document local-only API boundary
• Add Linux-safe fallback when DeckGL WebGL2 is unavailable
• fix: update Sentry noise filters for CSP regex and truncated loads
• fix(pwa): disable default navigateFallback in generated SW
• fix(pwa): prevent stale HTML precache regression
• fix(runtime): block cloud fallback for local-only api routes
• chore: update package-lock.json
• perf: add will-change hints to animated elements for GPU compositing
• perf: add CSS contain: content to .panel for layout isolation
• fix: internationalize verification checklist labels
• chore: sync package-lock.json version to 2.5.0
• fix: replace hardcoded English strings with i18n t() calls
• perf: tree-shake unused locale files from initial bundle
• feat: pre-render critical CSS skeleton in index.html for instant perceived load
• chore: sync package-lock.json with package.json version
• Fix setInterval clock leak in startHeaderClock()
• fix: implement live-stream detection in youtubeLivePlugin dev middleware
• fix: replace Polymarket prod proxy with local Vite middleware plugin
• fix: add Desktop app (Linux), LLMs settings, and live webcams to bug report template

Full Changelog: https://github.com/koala73/worldmonitor/compare/v2.5.0...v2.5.1