实例页增加远程更新客户端：下发 git pull + pm2 restart，并轮询版本确认上线。

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

app.py

@@ -42,7 +42,9 @@ from lib.bridge_client_lib import (
     dispatch_cond_order_to_ids,
     fetch_backup_file,
     fetch_backup_list,
+    fetch_client_version,
     fetch_cond_orders,
+    post_client_update,
     post_close_full,
     post_cond_cancel,
     post_cond_exit,
@@ -524,6 +526,37 @@ def api_open_url(iid: int):
     return jsonify({"ok": True, "url": url, "base_url": inst["base_url"]})
 
 
+@app.route("/api/instances/<int:iid>/version", methods=["GET"])
+@login_required
+def api_instance_version(iid: int):
+    inst = get_instance(iid)
+    if not inst:
+        return jsonify({"ok": False, "msg": "实例不存在", "online": False}), 404
+    result = fetch_client_version(inst)
+    code = 200 if result.get("online") else 502
+    return jsonify(result), code
+
+
+@app.route("/api/instances/<int:iid>/update", methods=["POST"])
+@login_required
+def api_instance_update(iid: int):
+    """实例页远程快速更新:转发客户端 Bridge /api/hub/update."""
+    inst = get_instance(iid)
+    if not inst:
+        return jsonify({"ok": False, "msg": "实例不存在"}), 404
+    if not inst.get("enabled"):
+        return jsonify({"ok": False, "msg": "实例未启用"}), 400
+    result = post_client_update(inst)
+    status = 200
+    if not result.get("ok"):
+        msg = str(result.get("msg") or "")
+        if msg.startswith("HTTP ") or "超时" in msg or "下发失败" in msg or "缺少 URL" in msg:
+            status = 502
+        else:
+            status = 400
+    return jsonify(result), status
+
+
 @app.route("/api/instances/<int:iid>/options/close", methods=["POST"])
 @login_required
 def api_instance_options_close(iid: int):