test(plugin): verify real cancellation cleanup

app/schemas/exception.py

@@ -1,3 +1,14 @@
+__all__ = (
+    "ImmediateException",
+    "LimitException",
+    "APIRateLimitException",
+    "RateLimitExceededException",
+    "OperationInterrupted",
+    "StorageQueryError",
+    "TMDbException",
+)
+
+
 class ImmediateException(Exception):
     """
     用于立即抛出异常而不重试的特殊异常类。

app/schemas/exports.py

@@ -81,8 +81,6 @@ SCHEMA_EXPORTS = {
     'DashboardMemoryInfo': ('app.schemas.dashboard', 'DashboardMemoryInfo'),
     'DashboardSystemInfo': ('app.schemas.dashboard', 'DashboardSystemInfo'),
     'DataT': ('app.schemas.response', 'DataT'),
-    'DatabaseWorkerClosedError': ('app.schemas.exception', 'DatabaseWorkerClosedError'),
-    'DatabaseWorkerOverloadedError': ('app.schemas.exception', 'DatabaseWorkerOverloadedError'),
     'Dict': ('app.schemas.mcp', 'Dict'),
     'DiscoverMediaSource': ('app.schemas.event', 'DiscoverMediaSource'),
     'DiscoverSourceEventData': ('app.schemas.event', 'DiscoverSourceEventData'),