Initial commit: personal homepage with live Harbor registry

- Linktree-style homepage with photo, social links, and self-hosted
  services (container registry, Git server)
- Registry pages rendered on demand from Harbor via a live content
  collection, cached in memory (60s fresh, 10min stale-while-revalidate)
- Pinned registry images (PINNED_IMAGES) shown first with a star
- Node standalone server with security headers; self-contained server
  build so the Docker image ships no node_modules
- Gitea workflow building multi-arch images for Flux

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "extends": "astro/tsconfigs/strict",
+  "include": [".astro/types.d.ts", "**/*"],
+  "exclude": ["dist"]
+}