chore: sync with Gitea master and restore local-only files

Reset local main to gitea/master (new source of truth) and restored
local-only files: web scrapers, admin dashboard, ChromaDB integration,
debug scripts, and utility libraries that aren't tracked in Gitea.

Gitea master adds: discovermass, buscarmisas-network, hk-parishes,
bohosluzby, kerknet, gottesdienstzeiten, miserend importers,
ClaimRequest model, forward geocoding, heartbeat healthcheck.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

next.config.ts

@@ -0,0 +1,9 @@
+import type { NextConfig } from 'next';
+
+const nextConfig: NextConfig = {
+  output: 'standalone',
+  poweredByHeader: false,
+  reactStrictMode: true,
+};
+
+export default nextConfig;