fix(dev): proxy /api/nip05 and /api/ai in the Vite dev server

Both are production-only (Netlify Function + the CVM-host proxy), so on
localhost the dev server answered them with index.html and the NIP-05
availability check showed 'Could not check right now' (and dev AI silently fell
back to Pollinations). Proxying them to the real endpoints (as /api/mints
already is) makes dev behave like prod. Verified: the check returns a real
availability result and /api/ai/status returns the live Routstr balance.

Dev-only config — the built output is unchanged, so the deploy guard skips it.

AGENTS.md

@@ -645,6 +645,12 @@ session with **no other memory of this project**. So:
   at `/api/mints/*` — prod proxies via `public/_redirects` (`/api/mints/* →
   https://mintradar.org/api/mints/:splat 200`), dev via `server.proxy` in
   `vite.config.ts`. Data is unofficial/rate-limited; adding a mint is native-only.
+  ⚠️ **`vite.config.ts`'s `server.proxy` also covers `/api/nip05` →
+  `https://skate-spots.org` and `/api/ai` → `https://ai.skate-spots.org`
+  (2026-09-28).** Without them the dev server answers those production-only
+  endpoints with `index.html`, so the NIP-05 availability check showed
+  **"Could not check right now"** on localhost and dev AI silently fell back to
+  Pollinations. (Prod is unaffected — the functions are same-origin there.)
   ⚠️ **Relative `/api/*` paths don't work in the native app** (fixed 2026-09-27):
   the shell is served from `https://localhost`, so `/api/mints/known` hits the
   LOCAL asset server and returns `index.html` → `Unexpected token '<' … not valid

vite.config.ts

@@ -21,6 +21,20 @@ export default defineConfig(() => ({
         changeOrigin: true,
         secure: true,
       },
+      // /api/nip05 (the name registry) and /api/ai are PRODUCTION-only (Netlify
+      // Function + the CVM-host proxy). Without a dev proxy the dev server
+      // answers them with index.html, so the NIP-05 availability check failed
+      // locally with "Could not check right now" and dev AI never worked.
+      '/api/nip05': {
+        target: 'https://skate-spots.org',
+        changeOrigin: true,
+        secure: true,
+      },
+      '/api/ai': {
+        target: 'https://ai.skate-spots.org',
+        changeOrigin: true,
+        secure: true,
+      },
     },
   },
   plugins: [