fix: add active check post account platform update to prevent silent ignore by remote backend

backend/app/routers/websites.py

@@ -1825,6 +1825,16 @@ def organize_website_groups(
                                     if "group_ids" in update_payload:
                                         remote_acc["group_ids"] = new_group_ids
                                     if "platform" in update_payload:
+                                        # 主动核对防线：防止子站忽略 platform 修改而发生静默失败
+                                        fresh_accs = c.list_accounts() or []
+                                        fresh_acc = next((a for a in fresh_accs if str(c.extract_id(a)) == str(old_account_id)), None)
+                                        if fresh_acc:
+                                            remote_account_map[str(old_account_id)] = fresh_acc
+                                            new_platform = fresh_acc.get("platform")
+                                            if str(new_platform).lower() != str(platform).lower():
+                                                raise WebsiteError(
+                                                    f"远端账号不支持修改平台属性，尝试将平台从 {remote_platform} 修改为 {platform} 失败"
+                                                )
                                         remote_acc["platform"] = platform
 
                                     msg_parts = []

backend/test_organize_groups.py

@@ -541,6 +541,7 @@ def test_organize_groups_corrects_mismatched_platform_instead_of_recreating(db_s
 
     updated_accounts = []
     create_called = False
+    mock_platform = "openai"
 
     class MockClient:
         def __init__(self, **kwargs): pass
@@ -554,7 +555,7 @@ def test_organize_groups_corrects_mismatched_platform_instead_of_recreating(db_s
                     "id": "ACC-G1",
                     "name": "SmartUp-G1",
                     "group_ids": ["TG1"],
-                    "platform": "openai",
+                    "platform": mock_platform,
                 }
             ]
         def extract_id(self, val):
@@ -564,7 +565,10 @@ def test_organize_groups_corrects_mismatched_platform_instead_of_recreating(db_s
             create_called = True
             return {"id": "NEW-ACC", "name": body["name"], "group_ids": body["group_ids"]}
         def update_account(self, account_id, body):
+            nonlocal mock_platform
             updated_accounts.append((account_id, body))
+            if "platform" in body:
+                mock_platform = body["platform"]
             return {"id": account_id, "platform": body.get("platform")}
 
     monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)