Scaffold Regress: Fastify+SQLite server and Vue frontend for the Ingress-style BTC Map capture game

- Server: NIP-98 nostr auth (session cookies), BTC Map sync, claim/link/field
  routes, physical-presence checks via geolocation distance. 31 tests passing.
- Frontend: Leaflet map, team pick, claim/link UI, Archipelago identity
  bridge vendored (nostr-provider.js) for dashboard launch support.
- Verified end-to-end against the live BTC Map API (167 real Madeira places)
  and via genuine NIP-98-signed HTTP requests against the built app.

server/src/index.ts

@@ -0,0 +1,12 @@
+import { loadConfig } from './config.js';
+import { buildApp } from './app.js';
+
+const config = loadConfig();
+const app = await buildApp({ config });
+
+try {
+  await app.listen({ port: config.PORT, host: config.HOST });
+} catch (err) {
+  app.log.error(err);
+  process.exit(1);
+}