Replace external Google Fonts CSS request (780ms render-blocking) with
self-hosted woff2 files served from /static/fonts/ with 30-day cache.
- 8 woff2 files: Poppins 400/500/600/700 × latin/latin-ext (53KB total)
- Inline @font-face declarations in <style> tag (no external request)
- font-display: swap preserved (no FOIT)
- CSP updated: removed fonts.googleapis.com and fonts.gstatic.com
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
