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.

frontend/tailwind.config.js

@@ -0,0 +1,13 @@
+/** @type {import('tailwindcss').Config} */
+export default {
+  content: ['./index.html', './src/**/*.{vue,ts}'],
+  theme: {
+    extend: {
+      colors: {
+        orange: { team: '#f97316' },
+        green: { team: '#22c55e' },
+      },
+    },
+  },
+  plugins: [],
+};