refactor: own legacy subscription report tasks

tests/test_server_statistic_lifecycle.py

@@ -0,0 +1,42 @@
+"""服务端统计兼容入口的后台任务生命周期回归。"""
+
+from unittest.mock import Mock, patch
+
+from app.adapters.external.server import MoviePilotServerHelper
+from app.runtime.config import global_vars
+
+
+def test_legacy_subscription_reports_use_owned_threadsafe_tasks() -> None:
+    """旧同步统计入口应保留 ABI，并让宿主等待已开始的线程工作。"""
+    loop = Mock(**{"is_running.return_value": True, "is_closed.return_value": False})
+    registry = Mock()
+
+    def submit(coroutine, **_kwargs):
+        """关闭测试协程，避免替身提交留下未等待警告。"""
+        coroutine.close()
+        return Mock()
+
+    registry.submit_threadsafe.side_effect = submit
+    with patch.object(global_vars, "CURRENT_EVENT_LOOP", loop), patch(
+        "app.adapters.external.server.get_task_registry", return_value=registry
+    ):
+        assert MoviePilotServerHelper.sub_reg_async({"media_id": "1"}) is True
+        assert MoviePilotServerHelper.sub_done_async({"media_id": "1"}) is True
+
+    assert registry.submit_threadsafe.call_count == 2
+    assert registry.submit_threadsafe.call_args_list[0].kwargs == {
+        "loop": loop,
+        "owner": "compat.server.subscribe_added_report",
+        "cancel_on_shutdown": False,
+    }
+    assert registry.submit_threadsafe.call_args_list[1].kwargs == {
+        "loop": loop,
+        "owner": "compat.server.subscribe_done_report",
+        "cancel_on_shutdown": False,
+    }
+
+
+def test_legacy_subscription_report_rejects_without_runtime_loop() -> None:
+    """宿主生命周期不可用时应拒绝提交，并保持布尔返回合同。"""
+    with patch.object(global_vars, "CURRENT_EVENT_LOOP", None):
+        assert MoviePilotServerHelper.sub_done_async({"media_id": "1"}) is False