fix: 修复监控链路 api_key 未解码致 401、瞬时 401 误禁、前端表单多处问题 - monitor: 调度链路对 base64 存储的 api_key 解码（此前直接发送编码串导致所有账号 401） - fetcher: 401/403 先按重试次数确认再判定禁用，避免瞬时 401 误杀；POST 自动补 Content-Type: application/json - ui: val/err 兼容 # 前缀（保存无反应的根因）；平台编辑回填 headers 反转义；监控页补添加账号入口 - test: 新增 monitor 解码回归测试，共 51 个用例

tests/test_fetcher.py

@@ -105,7 +105,7 @@ class TestFetchBalance:
         assert result.ok
         assert captured["data"] == '{"api_key": "sk-2"}'
 
-    def test_401_is_auth_error_no_retry(self, monkeypatch):
+    def test_401_retries_then_auth_error(self, monkeypatch):
         calls = []
 
         def fake_get(url, headers=None, timeout=10):
@@ -113,9 +113,21 @@ class TestFetchBalance:
             return FakeResponse(401, text="unauthorized")
 
         monkeypatch.setattr("requests.get", fake_get)
-        result = fetch_balance(PLATFORM_GET, "bad", retry_count=3, timeout=10)
+        result = fetch_balance(PLATFORM_GET, "bad", retry_count=2, timeout=10)
         assert not result.ok and result.auth_error
-        assert len(calls) == 1
+        assert len(calls) == 3  # 401 也按重试次数确认后再判定
+
+    def test_transient_401_then_success(self, monkeypatch):
+        calls = []
+
+        def fake_get(url, headers=None, timeout=10):
+            calls.append(1)
+            return FakeResponse(401) if len(calls) == 1 else FakeResponse(200, json_data={"data": {"balance": 6.6}})
+
+        monkeypatch.setattr("requests.get", fake_get)
+        result = fetch_balance(PLATFORM_GET, "k", retry_count=2, timeout=10)
+        assert result.ok and result.balance == 6.6
+        assert len(calls) == 2  # 瞬时 401 重试后成功，不误判禁用
 
     def test_5xx_retries_then_success(self, monkeypatch):
         calls = []