Fix hub AI save: background PM2 restart after JSON response.

Co-authored-by: Cursor <cursoragent@cursor.com>

manual_trading_hub/static/app.js

@@ -4409,6 +4409,16 @@
     return values;
   }
 
+  async function parseApiJson(r) {
+    const ct = (r.headers.get("content-type") || "").toLowerCase();
+    if (!ct.includes("application/json")) {
+      const text = await r.text();
+      const snippet = (text || "").replace(/\s+/g, " ").trim().slice(0, 120);
+      throw new Error(snippet ? `服务返回非 JSON：${snippet}` : `HTTP ${r.status}`);
+    }
+    return r.json();
+  }
+
   async function saveHubAiEnv() {
     const status = document.getElementById("hub-ai-env-save-status");
     const setStatus = (msg, err) => {
@@ -4423,15 +4433,17 @@
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ values: collectHubAiEnvValues(), restart: true }),
       });
-      const j = await r.json();
+      const j = await parseApiJson(r);
       if (!r.ok) throw new Error(j.detail || j.msg || "保存失败");
       if (!j.changed || !Object.keys(j.changed).length) {
         setStatus("未修改（与当前配置相同）");
         showToast("未修改");
         return;
       }
-      setStatus("已同步三所，服务重启中…");
-      await waitHubHealth();
+      if (j.restart_required) {
+        setStatus("已同步三所，服务重启中…");
+        await waitHubHealth();
+      }
       setStatus("AI 配置已保存并同步至三所实例");
       showToast("AI 配置已保存并同步");
       await loadHubAiEnvSettings();

manual_trading_hub/static/index.html

@@ -1192,6 +1192,6 @@
   <script src="/assets/time_close_ui.js?v=3"></script>
   <script src="/assets/options_expiry_countdown.js?v=1"></script>
   <script src="/assets/backup.js?v=1"></script>
-  <script src="/assets/app.js?v=20260708-hub-tp-profit"></script>
+  <script src="/assets/app.js?v=20260708-hub-ai-save"></script>
 </body>
 </html>