feat: add API Dashboard + filled icons + pipeline improvements
- Add /api-dashboard page with API connection status, env var checker,
pipeline flow diagram, and cost estimator
- Add 15 new filled SVG icons (Shield, Database, Server, Bolt, Eye,
Copy, Check, Cross, Warning, Refresh, Flow, Coin, LinkExternal etc.)
- Follow INFINITH design system: no emoji, no line icons, semantic
status colors, diagonal shadows, brand gradients, font-serif headings
- Improve Vision Analysis with base64 encoding fix
- Add SectionErrorBoundary for graceful section-level error handling
- Add Google Places API utility (prepared for future migration)
- Fix Edge Function auth headers and report generation pipeline
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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