fix: 优化端口

public/models.html

@@ -96,7 +96,8 @@
     </div>
     <script>
       const $ = (id) => document.getElementById(id);
-      const API_BASE = 'http://localhost:8000';
+      // 相对路径，由 Node 代理到后端
+      const API_BASE = '';
 
       async function callApi(path, options = {}) {
         const url = API_BASE + path;
@@ -164,7 +165,8 @@
       loadModels();
 
       (function wsStatusCheck() {
-        const API_BASE = 'http://localhost:8000';
+        // 相对路径，由 Node 代理到后端
+      const API_BASE = '';
         let wasConnected = false;
         const CHECK_MS = 8000;
         const t = setInterval(async () => {