fix(sector-radar): 兼容停牌时段为空

zhixing-server/tests/unit/sector_radar/test_tushare_source.py

@@ -333,6 +333,47 @@ def test_stock_basic_explicitly_requests_all_lifecycle_statuses() -> None:
     assert [call[1]["list_status"] for call in client.calls] == ["L", "D", "P", "G", "UN"]
 
 
+def test_suspend_timing_may_be_missing_while_suspend_type_remains_required() -> None:
+    client = QueryClient(
+        {
+            (
+                "suspend_d",
+                "",
+            ): (
+                {
+                    "ts_code": "000001.SZ",
+                    "trade_date": "20260828",
+                    "suspend_timing": None,
+                    "suspend_type": "S",
+                },
+            )
+        }
+    )
+
+    result = make_adapter(client).fetch_suspensions(TARGET_DATE)
+
+    assert result.rows[0].suspend_timing is None
+    assert result.rows[0].suspend_type == "S"
+
+    missing_type = QueryClient(
+        {
+            (
+                "suspend_d",
+                "",
+            ): (
+                {
+                    "ts_code": "000001.SZ",
+                    "trade_date": "20260828",
+                    "suspend_timing": None,
+                    "suspend_type": None,
+                },
+            )
+        }
+    )
+    with pytest.raises(SourceContractError, match="suspend_type must be a non-empty string"):
+        make_adapter(missing_type).fetch_suspensions(TARGET_DATE)
+
+
 def test_source_snapshot_hash_is_order_stable_and_excludes_token_params() -> None:
     first = build_source_snapshot(
         api_name="daily",