fix(tasks): isolate peripheral feedback writes by execution scope

An old development synchronizer could overwrite a production recovery timestamp in a shared project database even after production deployment. Check task scope before feedback or source-withdrawal writes and before idempotency replay.

Cover cross-scope rejection, same-scope success and replay, and preserve actual field feedback time when later order metadata changes.

tests/unit/test_peripheral_task_sync.py

@@ -226,7 +226,7 @@ async def test_sample_sync_rejects_cross_project_data_before_writing():
 
 @pytest.mark.anyio
 @pytest.mark.parametrize("targeted", [False, True])
-@pytest.mark.parametrize("order_revision", [1, 2])
+@pytest.mark.parametrize("order_revision", [1, 4])
 @pytest.mark.parametrize(
     ("investigation_status", "expected_feedback_count", "routes_to_investigation"),
     [
@@ -254,9 +254,13 @@ async def test_created_work_order_receipt_preserves_projection_and_routes_active
                 "updated_at": "2026-09-23T09:00:00Z",
                 "title": "采样工单", "priority": "normal",
                 "work_order_type": "general", "created_at": "2026-09-23T08:00:00Z",
-                "scheduled_at": None,
+                "scheduled_at": "2026-09-23T08:30:00Z",
                 "activity": ([{"sequence": 2, "occurred_at": "2026-09-23T08:45:00Z", "actor": "现场人员",
-                               "kind": "feedback", "title": "现场反馈", "detail": "复测余氯0.2mg/L"}]
+                               "kind": "feedback", "title": "现场反馈", "detail": "复测余氯0.2mg/L"},
+                              {"sequence": 3, "occurred_at": "2026-09-23T08:50:00Z", "actor": "调度员",
+                               "kind": "updated", "title": "工单信息更新", "detail": "更新了状态。"},
+                              {"sequence": 4, "occurred_at": "2026-09-23T09:00:00Z", "actor": "调度员",
+                               "kind": "updated", "title": "工单信息更新", "detail": "更新了优先级。"}]
                              if order_revision > 1 else []),
             }
             if targeted: