feat(frontend): implement P0 optimization baseline

apps/frontend/vite.config.ts

@@ -8,6 +8,7 @@ import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
 
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd(), '')
+  const allowedHosts = parseAllowedHosts(env.VITE_ALLOWED_HOSTS)
 
   return {
     plugins: [
@@ -28,11 +29,8 @@ export default defineConfig(({ mode }) => {
       },
     },
     server: {
-      // 👇 加入这行，允许通过 IP 和网络访问
-      host: true, 
-      // 👇 加入这行，允许所有外部域名（包括 Cloudflare 分配的域名）访问
-      allowedHosts: true, 
-      
+      host: env.VITE_DEV_HOST === 'true',
+      allowedHosts: env.VITE_ALLOW_ALL_HOSTS === 'true' ? true : allowedHosts,
       proxy: {
         '/api': {
           target: env.VITE_API_TARGET || 'http://localhost:3000',
@@ -42,3 +40,12 @@ export default defineConfig(({ mode }) => {
     },
   }
 })
+
+function parseAllowedHosts(value?: string) {
+  const hosts = value
+    ?.split(',')
+    .map((host) => host.trim())
+    .filter(Boolean)
+
+  return hosts && hosts.length > 0 ? hosts : ['localhost', '127.0.0.1']
+}