Make 42776 the project's default listen port everywhere :8080 was the default:
.env.example, the Go config fallback, the Dockerfile (ENV/EXPOSE/healthcheck),
and the docs example. 42776 is the sum of the Unicode code points of 七夕
(七 U+4E03 = 19971, 夕 U+5915 = 22805).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a multi-stage Dockerfile that builds the SvelteKit SPA (adapter-static,
no Node runtime in the final image) and the Go server, then ships an Alpine
runtime that serves both the static frontend and the API on one port.
- Stage 1 (node): npm ci + build → static SPA (index.html, _app, fonts, sw)
- Stage 2 (golang): CGO_ENABLED=0 static binary (image processing is pure Go)
- Stage 3 (alpine): + ffmpeg for video thumbnails, non-root user, /data volume,
healthcheck on /health; secrets passed at runtime, not baked in
To serve the SPA on the API port, the Go server now optionally hosts static
files behind a new STATIC_DIR env var: a request maps to a real file when one
exists, otherwise falls back to index.html for client-side routes; unknown
/api/ paths still return JSON 404. Empty STATIC_DIR (local dev) keeps the API
standalone while Vite serves the UI. Cache-Control is tuned to adapter-static
output (immutable hashed assets, no-cache service worker) and .webmanifest is
registered so nosniff doesn't reject the PWA manifest.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>