fix: enable WebSocket proxying in Vite dev server

Enables ws: true for /api proxy to properly forward WebSocket connections through the development server in web mode. This ensures real-time features work correctly when developing in browser mode.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

apps/ui/vite.config.mts

@@ -72,6 +72,7 @@ export default defineConfig(({ command }) => {
         '/api': {
           target: 'http://localhost:3008',
           changeOrigin: true,
+          ws: true,
         },
       },
     },