Clean up tunnel infrastructure and migrate to Gitea

frontend/vite.config.js

@@ -12,6 +12,13 @@ export default defineConfig({
   },
   server: {
     port: 5173,
+    host: true, // Listen on all addresses
+    allowedHosts: [
+      ".trycloudflare.com", // Cloudflare Quick Tunnels
+      ".turbo.local", // Custom tunnel domains
+      ".devtunnels.ms", // VS Code Dev Tunnels
+      "localhost",
+    ],
     proxy: {
       "/api": {
         target: "http://localhost:3000",
@@ -19,8 +26,9 @@ export default defineConfig({
         // Don't rewrite - backend expects /api prefix
       },
       "/ws": {
-        target: "ws://localhost:3000",
+        target: "http://localhost:3000",
         ws: true,
+        changeOrigin: true,
       },
     },
   },