fix(scada): align location capability and investigation guidance

tests/unit/test_burst_location_demo.py

@@ -131,6 +131,8 @@ def test_location_capability_and_tool_contract_do_not_inject_mock_instructions()
     assert "mock" not in str(context) and "模拟" not in context["notice"]
     tool = TOOLS["run_burst_location"].protocol_tool()
     assert "相似度" in tool.description
+    assert "location_capability.available=true" in tool.description
+    assert "location_demo" not in tool.description
     assert "demo模拟候选" not in tool.description
     assert "明确标记的演示候选" not in str(tool.input_schema)
 

tests/unit/test_mcp_work_order_skills.py

@@ -49,6 +49,16 @@ def test_work_order_handling_and_legacy_scada_replay_receive_separate_skills():
     assert "run_burst_location" in replay["instructions"]
 
 
+def test_scada_instructions_advance_candidate_analysis_independently_of_source_labels():
+    skill = read_work_order_skill("scada_anomaly", include_content=True)
+    text = skill["instructions"]
+    assert "location_capability" in text
+    assert "证据来源字段用于记录数据取得方式，不构成停止分析的条件" in text
+    assert "隔离边界、节点覆盖与影响分析，完成报告后再收尾" in text
+    assert "现场工单与设备操作遵守服务端动作权限" in text
+    assert not any(word in text for word in ("演示", "mock", "location_demo", "只发布回放成果"))
+
+
 def test_task_skill_uses_persisted_workflow_and_preserves_task_scope(monkeypatch):
     task_id, project_id = uuid4(), uuid4()
     reader = AsyncMock(return_value={"task": {"workflow": "burst_report"}})
@@ -103,7 +113,8 @@ def test_replay_context_advertises_demo_location_without_revealing_truth(monkeyp
     for section in ("summary", "skill"):
         result = asyncio.run(query_service.execute_query(scope, binding, TOOLS["get_task_context"],
             TaskContextInput(context_handle=binding.context_handle, section=section)))
-        capability = result.data["location_demo"]
+        capability = result.data["location_capability"]
+        assert "location_demo" not in result.data
         assert capability["available"] is True
         assert capability["tool"] == "run_burst_location"
         assert capability["burst_leakage_required"] is False
@@ -113,4 +124,4 @@ def test_replay_context_advertises_demo_location_without_revealing_truth(monkeyp
     binding.replay_context["knowledge_cutoff"] = "2026-07-15T23:45:00Z"
     result = asyncio.run(query_service.execute_query(scope, binding, TOOLS["get_task_context"],
         TaskContextInput(context_handle=binding.context_handle)))
-    assert result.data["location_demo"]["available"] is False
+    assert result.data["location_capability"]["available"] is False

tests/unit/test_scada_replay_queries.py

@@ -10,7 +10,7 @@ from fastapi import HTTPException
 
 from app.mcp.analysis_models import BurstLocationInput
 from app.mcp.catalog import TOOLS
-from app.mcp.models import BoundContext
+from app.mcp.models import BoundContext, ScadaInput
 from app.mcp import query_service
 from app.services.scada_replay_queries import replay_burst_location_inputs, replay_snapshot_rows
 
@@ -18,6 +18,30 @@ from app.services.scada_replay_queries import replay_burst_location_inputs, repl
 START = datetime(2026, 10, 8, tzinfo=timezone.utc)
 
 
+def test_replay_origin_is_preserved_without_a_provenance_only_data_gap(monkeypatch):
+    from app.services import scada_replay_queries
+
+    monkeypatch.setattr(query_service, "authorize_query", AsyncMock())
+    reading = {"time": START.isoformat(), "device_id": "P1", "cleaned_value": 20.0,
+               "monitored_value": 20.0, "quality": "valid"}
+    read = AsyncMock(return_value=[reading])
+    monkeypatch.setattr(scada_replay_queries, "replay_snapshot_rows", read)
+    project_id = uuid4()
+    context = {"replay_id": str(uuid4()), "knowledge_cutoff": (START + timedelta(minutes=15)).isoformat(),
+               "batch_sequence": 9}
+    connection = object()
+    scope = SimpleNamespace(connection=connection, project=SimpleNamespace(project_id=project_id))
+    binding = SimpleNamespace(replay_context=context)
+    args = ScadaInput(context_handle="a" * 43, device_ids=["P1"], start=START,
+                      end=START + timedelta(minutes=15))
+    result = asyncio.run(query_service.execute_query(scope, binding, TOOLS["query_scada_readings"], args))
+    assert result.origin == "synthetic"
+    assert result.data[0]["device_id"] == "P1"
+    assert result.data_gaps == []
+    read.assert_awaited_once_with(connection, project_id, context, ["P1"], args.start, args.end,
+                                  args.limit + 1, args.offset)
+
+
 class Cursor:
     def __init__(self, rows): self.rows = rows
     async def fetchone(self): return self.rows[0] if self.rows else None