Remove Astro adapter (causes esbuild bundling errors on Netlify)
and use a pure static build + standalone Netlify Function instead.
- Removed @astrojs/netlify adapter — site builds as fully static
- Created netlify/functions/admin.mts as a standalone Netlify Function
- Function handles all admin API operations via GitHub API
- Removed src/pages/api/admin.ts (Astro SSR route)
- Local dev: admin syncs to localStorage (server sync fails silently)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Netlify's asset post-processing was re-minifying Vite's output
and causing esbuild syntax errors. Disable it since Astro/Vite
already handles bundling and minification.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
