fix(HEL-164): 拒绝缓存不完整涨停快照

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

backend/data/providers/tushare_dashboard.py

@@ -41,13 +41,16 @@ class DashboardMixin:
             raise TushareError(f"No daily data returned for {trade_date}")
 
         notices: list[str] = []
+        limit_data_source = "official"
         try:
             limit_rows = self._load_limit_lists(trade_date)
             previous_limit_rows = self._load_limit_type(previous_trade_date, "U")
             if not limit_rows:
+                limit_data_source = "derived"
                 notices.append("涨跌停高级接口当日数据尚未更新，已使用日线数据推算。")
                 limit_rows = self._derive_limits(trade_date, daily)
         except TushareError as exc:
+            limit_data_source = "derived"
             notices.append(f"涨跌停高级接口不可用，已使用日线数据推算：{exc}")
             limit_rows = self._derive_limits(trade_date, daily)
             previous_daily = self._load_daily(previous_trade_date)
@@ -79,6 +82,7 @@ class DashboardMixin:
                 "trade_date": _display_date(trade_date),
                 "previous_trade_date": _display_date(previous_trade_date),
                 "source": "tushare",
+                "limit_data_source": limit_data_source,
                 "updated_at": datetime.now().astimezone().isoformat(timespec="seconds"),
                 "notice": "；".join(notices),
             },

backend/features/market/service.py

@@ -198,6 +198,11 @@ class MarketServiceMixin:
                     raise TushareError("公共行情尚未配置")
                 dashboard = self._tushare_client().dashboard(normalized_date)
 
+                if (dashboard.get("meta") or {}).get("limit_data_source") == "derived":
+                    raise TushareError(
+                        str((dashboard.get("meta") or {}).get("notice") or "官方涨跌停数据尚未返回")
+                    )
+
                 dashboard["meta"]["source"] = source
                 dashboard["meta"]["requested_date"] = self._display_compact_date(normalized_date)
                 dashboard = self._enrich_dashboard_sentiment(dashboard, normalized_date)

backend/jobs/service.py

@@ -7,6 +7,16 @@ from datetime import date
 from backend.bootstrap.config import normalize_date
 
 
+def _verified_dashboard_result(dashboard: dict[str, object]) -> dict[str, object]:
+    meta = dashboard.get("meta") or {}
+    if isinstance(meta, dict) and meta.get("carried_forward"):
+        return {
+            "status": "failed",
+            "error": str(meta.get("notice") or "未获取到所选日期的最新行情"),
+        }
+    return dashboard
+
+
 class JobServiceMixin:
     def start_background_jobs(self) -> threading.Thread:
         return self.jobs.start_scheduler(
@@ -26,7 +36,7 @@ class JobServiceMixin:
         started = self.jobs.submit(
             "market.refresh",
             key,
-            lambda: self.sync_dashboard(normalized),
+            lambda: _verified_dashboard_result(self.sync_dashboard(normalized)),
             {"trade_date": normalized, "trigger": "administrator"},
         )
         return {"started": started, "job_key": key if started else ""}