fix(HEL-494): 修复个股缺失指标、问天遮罩、四爻外显并回补250日K

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

backend/data/providers/tushare_dashboard.py

@@ -365,10 +365,9 @@ class DashboardMixin:
         ts_code: str,
         reference_date: str = "",
     ) -> dict[str, Any]:
-        rows = self.query("rt_k", {"ts_code": ts_code})
-        if not rows:
+        row = self._realtime_quote_row(ts_code, reference_date)
+        if not row:
             raise TushareError(f"No realtime quote returned for {ts_code}")
-        row = rows[0]
         close = _number(row.get("close"))
         previous_close = _number(row.get("pre_close"))
         if close <= 0 or previous_close <= 0:
@@ -452,10 +451,39 @@ class DashboardMixin:
             "float_share_10k": float_share,
             "capital_trade_date": str(capital.get("trade_date") or ""),
             "turnover_source": "rt_volume/latest_float_share" if float_share else "unavailable",
-            "data_source": "tushare",
+            "data_source": str(row.get("source") or "tushare"),
             "realtime": True,
         }
 
+    def _realtime_quote_row(self, ts_code: str, reference_date: str = "") -> dict[str, Any]:
+        hub = getattr(self, "try_quotes", None)
+        if callable(hub):
+            rows = hub([ts_code]) or []
+            if rows:
+                return dict(rows[0])
+        try:
+            rows = self.query("rt_k", {"ts_code": ts_code})
+            if rows:
+                return dict(rows[0])
+        except TushareError:
+            pass
+        aggregator = getattr(self, "realtime_aggregator", None)
+        if aggregator is None:
+            return {}
+        for loader in (
+            getattr(aggregator, "eastmoney_stock_quote", None),
+            getattr(aggregator, "tencent_stock_quote", None),
+        ):
+            if not callable(loader):
+                continue
+            try:
+                quote = loader(ts_code, expected_date=reference_date)
+            except Exception:
+                continue
+            if quote:
+                return dict(quote)
+        return {}
+
     def _stock_activity_metrics(
         self,
         ts_code: str,
@@ -573,7 +601,7 @@ class DashboardMixin:
             for row in reference.get("basic_rows") or []
             if row.get("ts_code")
         ]
-        quotes = self.query("rt_k", {"ts_code": ",".join(codes)}, "")
+        quotes, quote_source = self._load_realtime_quotes(",".join(codes), trade_date)
         rows = [
             row for row in quotes
             if _number(row.get("close")) > 0 and _number(row.get("pre_close")) > 0