feat: extend operational investigation workflows

tests/unit/test_peripheral_work_order_activity.py

@@ -1,6 +1,7 @@
 from uuid import uuid4
 
 import pytest
+from pydantic import ValidationError
 
 from samples.peripheral.auth import Identity
 from samples.peripheral.config import SampleSettings
@@ -29,6 +30,7 @@ def test_create_and_update_record_flat_order_activity(monkeypatch):
         feedback_requirements=["回传开度照片"],
     ))
     assert created["feedback_requirements"] == ["回传开度照片"]
+    assert created["origin"] == "system_data"
     assert created["activity"][0]["kind"] == "created"
     assert "subtasks" not in created
 
@@ -37,6 +39,7 @@ def test_create_and_update_record_flat_order_activity(monkeypatch):
         progress_note="已复核开度，等待回执确认",
     ))
     assert updated["status"] == "awaiting_reply"
+    assert updated["origin"] == "system_data"
     assert [entry["sequence"] for entry in updated["activity"]] == [1, 2]
     assert updated["activity"][1]["kind"] == "feedback"
     assert updated["activity"][1]["detail"] == "已复核开度，等待回执确认"
@@ -68,3 +71,21 @@ def test_legacy_order_reads_flat_without_claiming_unrecorded_progress():
     assert "subtasks" not in projected
     assert projected["feedback_requirements"] == []
     assert projected["activity"] == []
+
+
+def test_work_order_contract_rejects_synthetic_origin():
+    with pytest.raises(ValidationError):
+        CreateWorkOrder(
+            request_id=uuid4(), title="来源校验", summary="只接受系统数据", origin="synthetic",
+        )
+
+
+def test_legacy_work_order_origin_is_normalized_for_reads():
+    legacy = {
+        "work_order_id": str(uuid4()), "project_id": str(uuid4()), "revision": 1,
+        "title": "历史工单", "summary": "迁移前记录", "status": "open", "priority": "normal",
+        "assignee": None, "scheduled_at": None, "origin": "synthetic",
+        "created_at": "2026-09-18T00:00:00Z", "updated_at": "2026-09-18T00:00:00Z",
+        "created_by": str(uuid4()), "updated_by": str(uuid4()),
+    }
+    assert WorkOrder.model_validate(legacy).origin == "system_data"