feat(web): expose dev server to LAN for mock server testing

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

web/vite.config.ts

@@ -25,6 +25,7 @@ export default defineConfig({
     },
   },
   server: {
+    host: '0.0.0.0',
     port: 5173,
     strictPort: true,
     proxy: {