fix(HEL-356): complete Shenwan industry signal

Co-authored-by: multica-agent <github@multica.ai>

xiaobai-datahub/tests/test_realtime_intraday.py

@@ -9,7 +9,7 @@ from datahub.adapters.base import AdapterError
 from datahub.adapters.eastmoney import HIS_TRENDS_URL, TRENDS_URL, EastmoneyAdapter, _normalize_market_quote
 from datahub.adapters.tencent import _tencent_symbol
 from datahub.db import HubDB
-from datahub.realtime_serve import fetch_intraday
+from datahub.realtime_serve import fetch_intraday, fetch_sector_quote
 from datahub.serving import ApiError, V1API
 from datahub.timeutil import now_shanghai, yyyymmdd
 
@@ -110,6 +110,33 @@ class IntradayLkgTests(unittest.TestCase):
         self.assertIn("intraday unavailable", str(ctx.exception))
 
 
+class SectorQuoteIdentityTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.tmp = tempfile.TemporaryDirectory()
+        self.db = HubDB(Path(self.tmp.name) / "hub.db")
+        self.db.execute(
+            "INSERT INTO sector_master(ts_code,name,family,updated_at) VALUES (?,?,?,?)",
+            ("801074.SI", "专用设备", "sw", "2026-09-09T10:00:00+08:00"),
+        )
+
+    def tearDown(self) -> None:
+        self.tmp.cleanup()
+
+    def test_rejects_same_numeric_code_from_different_taxonomy(self) -> None:
+        wrong = {
+            "ts_code": "801074.SI",
+            "name": "托育服务",
+            "change": -2.19,
+            "quote_date": "20260909",
+            "source": "eastmoney_sw",
+        }
+        with patch("datahub.realtime_serve.EastmoneyAdapter") as mocked:
+            mocked.return_value.fetch_shenwan_quote.return_value = wrong
+            with self.assertRaises(Exception) as ctx:
+                fetch_sector_quote(self.db, "801074.SI", "20260909")
+        self.assertIn("industry name mismatch", str(ctx.exception))
+
+
 class ServingIntradayDateTests(unittest.TestCase):
     def setUp(self) -> None:
         self.tmp = tempfile.TemporaryDirectory()