fix(HEL-487): 盘中当天看板在 rt_k 无权限时降级到免费实时源

rt_k 失败、无权限、超时或空结果时改用东财全市场快照，再失败则用腾讯批量行情；两者都失败仍不退回昨天。

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

backend/data/gateway.py

@@ -37,7 +37,9 @@ class DataGateway:
     ) -> TushareClient:
         if dataset_id:
             self.policy.assert_allowed(dataset_id, "tushare", usage)
-        return DatahubAwareTushareClient(self.tushare_provider.client(), self.datahub)
+        legacy = self.tushare_provider.client()
+        legacy.realtime_aggregator = self.realtime_observer
+        return DatahubAwareTushareClient(legacy, self.datahub)
 
     def dataset_status(self, trade_date: str) -> list[dict[str, Any]] | None:
         return self.datahub.dataset_status(trade_date)

backend/data/providers/tushare_dashboard.py

@@ -128,7 +128,7 @@ class DashboardMixin:
         )
         if not codes:
             raise TushareError("No active stock codes available for rt_k")
-        quotes = self.query("rt_k", {"ts_code": codes})
+        quotes, quote_source = self._load_realtime_quotes(codes, trade_date)
         if not quotes:
             raise TushareError(f"No realtime data returned for {trade_date}")
 
@@ -186,12 +186,28 @@ class DashboardMixin:
         previous_sectors = _build_sectors(previous_limits)
         now = self._now()
         market_status = _realtime_market_status(now.time().replace(tzinfo=None))
+        if quote_source == "eastmoney_clist":
+            notice = (
+                "盘中行情由东财免费实时快照计算；涨停原因、封板时间和开板次数以盘后榜单校正为准。"
+            )
+            source_name = "eastmoney"
+        elif quote_source == "tencent_qt":
+            notice = (
+                "盘中行情由腾讯免费实时行情计算；涨停原因、封板时间和开板次数以盘后榜单校正为准。"
+            )
+            source_name = "tencent"
+        else:
+            notice = (
+                "盘中行情由 Tushare rt_k 实时计算；涨停原因、封板时间和开板次数以盘后榜单校正为准。"
+            )
+            source_name = "tushare"
         dashboard = {
             "meta": {
                 "requested_date": _display_date(requested_date),
                 "trade_date": _display_date(trade_date),
                 "previous_trade_date": _display_date(previous_trade_date),
-                "source": "tushare",
+                "source": source_name,
+                "quote_source": quote_source,
                 "mode": "realtime",
                 "realtime": True,
                 "market_status": market_status,
@@ -199,7 +215,8 @@ class DashboardMixin:
                 "auto_refresh": False,
                 "quote_count": len(daily),
                 "updated_at": now.isoformat(timespec="seconds"),
-                "notice": "盘中行情由 Tushare rt_k 实时计算；涨停原因、封板时间和开板次数以盘后榜单校正为准。",
+                "notice": notice,
+                "indices": self._free_realtime_indices() if quote_source != "tushare_rt_k" else [],
             },
             "overview": _build_overview(daily, up_rows, down_rows, broken_rows),
             "limits": limits,
@@ -213,6 +230,67 @@ class DashboardMixin:
         }
         return apply_sentiment_to_dashboard(dashboard)
 
+    def _realtime_aggregator(self):
+        aggregator = getattr(self, "realtime_aggregator", None)
+        if aggregator is None:
+            raise TushareError("免费实时源未配置")
+        return aggregator
+
+    def _load_realtime_quotes(
+        self,
+        codes: str,
+        trade_date: str,
+    ) -> tuple[list[dict[str, Any]], str]:
+        rt_error = ""
+        try:
+            quotes = self.query("rt_k", {"ts_code": codes})
+            if quotes:
+                return list(quotes), "tushare_rt_k"
+            rt_error = f"No realtime data returned for {trade_date}"
+        except TushareError as exc:
+            rt_error = str(exc)
+        try:
+            quotes, quote_source = self._free_realtime_quotes(trade_date, codes)
+        except Exception as exc:
+            raise TushareError(
+                f"当天盘中实时行情不可用：rt_k={rt_error}；免费源={exc}"
+            ) from exc
+        if not quotes:
+            raise TushareError(
+                f"当天盘中实时行情不可用：rt_k={rt_error}；免费源=empty"
+            )
+        return quotes, quote_source
+
+    def _free_realtime_quotes(
+        self,
+        trade_date: str,
+        codes: str = "",
+    ) -> tuple[list[dict[str, Any]], str]:
+        aggregator = self._realtime_aggregator()
+        last_error = ""
+        try:
+            quotes = aggregator.eastmoney_market_quotes(expected_date=trade_date)
+            if quotes:
+                return quotes, "eastmoney_clist"
+        except Exception as exc:
+            last_error = str(exc)
+        code_list = [item for item in str(codes or "").split(",") if item]
+        try:
+            quotes = aggregator.tencent_market_quotes(code_list, expected_date=trade_date)
+        except Exception as exc:
+            raise TushareError(
+                f"eastmoney={last_error or 'empty'}；tencent={exc}"
+            ) from exc
+        if not quotes:
+            raise TushareError(f"eastmoney={last_error or 'empty'}；tencent=empty")
+        return quotes, "tencent_qt"
+
+    def _free_realtime_indices(self) -> list[dict[str, Any]]:
+        try:
+            return self._realtime_aggregator().eastmoney_indices()
+        except Exception:
+            return []
+
     def _load_realtime_reference(
         self,
         trade_date: str,

backend/data/providers/tushare_indices.py

@@ -59,6 +59,12 @@ class IndexMixin:
         }
 
     def realtime_market_indices(self, requested_date: str) -> dict[str, Any]:
+        try:
+            return self._tushare_realtime_market_indices(requested_date)
+        except TushareError:
+            return self._free_realtime_market_indices(requested_date)
+
+    def _tushare_realtime_market_indices(self, requested_date: str) -> dict[str, Any]:
         trade_date, _ = self.resolve_trade_context(requested_date)
         index_names = {
             "000001.SH": "上证指数",
@@ -116,3 +122,52 @@ class IndexMixin:
                 "average_return_20d": 0,
             },
         }
+
+    def _free_realtime_market_indices(self, requested_date: str) -> dict[str, Any]:
+        trade_date, _ = self.resolve_trade_context(requested_date)
+        aggregator = getattr(self, "realtime_aggregator", None)
+        if aggregator is None:
+            raise TushareError("免费实时源未配置")
+        quotes = aggregator.eastmoney_indices()
+        index_names = {
+            "000001": ("000001.SH", "上证指数"),
+            "399001": ("399001.SZ", "深证成指"),
+            "399006": ("399006.SZ", "创业板指"),
+        }
+        indices = []
+        for quote in quotes:
+            mapped = index_names.get(str(quote.get("code") or ""))
+            if not mapped:
+                continue
+            ts_code, name = mapped
+            close = _number(quote.get("price"))
+            previous_close = _number(quote.get("previous_close"))
+            if close <= 0 or previous_close <= 0:
+                continue
+            indices.append(
+                {
+                    "ts_code": ts_code,
+                    "name": str(quote.get("name") or name).strip(),
+                    "trade_date": trade_date,
+                    "close": close,
+                    "pct_chg": round(_number(quote.get("change")) or (close / previous_close - 1) * 100, 3),
+                    "return_5d": 0,
+                    "amount_billion": round(_number(quote.get("amount_billion")), 2),
+                    "quote_time": quote.get("quote_time") or "",
+                    "source": quote.get("source") or "eastmoney_push2",
+                }
+            )
+        if len(indices) != 3:
+            raise TushareError("Realtime index quotes are incomplete")
+        return {
+            "trade_date": trade_date,
+            "source": "eastmoney_push2",
+            "realtime": True,
+            "precise": True,
+            "indices": indices,
+            "aggregate": {
+                "average_pct_chg": round(sum(item["pct_chg"] for item in indices) / len(indices), 3),
+                "average_return_5d": 0,
+                "average_return_20d": 0,
+            },
+        }

backend/data/realtime.py

@@ -20,7 +20,17 @@ class RealtimeAggregateError(RuntimeError):
 
 EASTMONEY_INDEX_URL = "https://push2.eastmoney.com/api/qt/ulist.np/get"
 EASTMONEY_SECTOR_URL = "https://push2.eastmoney.com/api/qt/clist/get"
+EASTMONEY_A_SHARE_BOARDS = (
+    "m:0+t:6",
+    "m:0+t:80",
+    "m:1+t:2",
+    "m:1+t:23",
+    "m:0+t:81",
+)
+EASTMONEY_QUOTE_FIELDS = "f12,f13,f14,f2,f3,f4,f5,f6,f15,f16,f17,f18,f8,f124"
+EASTMONEY_MARKET_PAGE_SIZE = 100
 TENCENT_INDEX_URL = "https://qt.gtimg.cn/q=sh000001,sz399001,sz399006"
+TENCENT_QUOTE_URL = "https://qt.gtimg.cn/q="
 THS_LIMIT_URL = "https://data.10jqka.com.cn/dataapi/limit_up/limit_up_pool"
 XGB_POOL_URL = "https://flash-api.xuangubao.cn/api/pool/detail"
 BROWSER_USER_AGENT = (
@@ -134,6 +144,145 @@ class WebRealtimeAggregator:
             raise RealtimeAggregateError(f"Eastmoney returned {len(result)}/3 indices")
         return result
 
+    def eastmoney_market_quotes(self, expected_date: str = "") -> list[dict[str, Any]]:
+        """Full A-share snapshot via Eastmoney clist, used when Tushare rt_k is unavailable."""
+        now = time.time()
+        cache_key = "assembled:eastmoney_market"
+        with self._response_cache_lock:
+            cached = self._response_cache.get(cache_key)
+        cache_age = now - float((cached or {}).get("created_at") or 0)
+        if cached and cache_age <= min(20, self.response_cache_ttl_seconds):
+            quotes = list(cached.get("payload") or [])
+            return self._filter_quotes_by_date(quotes, expected_date)
+
+        rows: list[dict[str, Any]] = []
+        board_errors: list[str] = []
+        for board in EASTMONEY_A_SHARE_BOARDS:
+            try:
+                rows.extend(self._eastmoney_board_quotes(board))
+            except Exception as exc:
+                board_errors.append(f"{board}:{exc}")
+        quotes = []
+        seen: set[str] = set()
+        for row in rows:
+            quote = _normalize_eastmoney_quote(row)
+            ts_code = str((quote or {}).get("ts_code") or "")
+            if not quote or ts_code in seen:
+                continue
+            seen.add(ts_code)
+            quotes.append(quote)
+        if len(quotes) < 200:
+            detail = f"；{'; '.join(board_errors)}" if board_errors else ""
+            raise RealtimeAggregateError(
+                f"Eastmoney market snapshot too small: {len(quotes)}{detail}"
+            )
+        quotes = self._filter_quotes_by_date(quotes, expected_date)
+        with self._response_cache_lock:
+            self._response_cache[cache_key] = {"created_at": now, "payload": quotes}
+        return quotes
+
+    def _eastmoney_board_quotes(self, board: str) -> list[dict[str, Any]]:
+        first = self._eastmoney_market_page(board, 1)
+        data = first.get("data") or {}
+        rows = _diff_rows(data)
+        total = int(_number(data.get("total")))
+        page_count = 1
+        if total > 0:
+            page_count = max(1, (total + EASTMONEY_MARKET_PAGE_SIZE - 1) // EASTMONEY_MARKET_PAGE_SIZE)
+        for page in range(2, min(page_count, 40) + 1):
+            payload = self._eastmoney_market_page(board, page)
+            rows.extend(_diff_rows(payload.get("data") or {}))
+        return rows
+
+    def _eastmoney_market_page(self, board: str, page: int) -> dict[str, Any]:
+        return self._get_json(
+            EASTMONEY_SECTOR_URL,
+            {
+                "pn": str(page),
+                "pz": str(EASTMONEY_MARKET_PAGE_SIZE),
+                "po": "1",
+                "np": "1",
+                "fltt": "2",
+                "invt": "2",
+                "fid": "f12",
+                "fs": board,
+                "fields": EASTMONEY_QUOTE_FIELDS,
+            },
+            referer="https://quote.eastmoney.com/center/gridlist.html",
+        )
+
+    def _filter_quotes_by_date(
+        self,
+        quotes: list[dict[str, Any]],
+        expected_date: str,
+    ) -> list[dict[str, Any]]:
+        want = str(expected_date or "").replace("-", "")
+        if not want or not quotes:
+            return quotes
+        dated = [item for item in quotes if str(item.get("quote_date") or "") == want]
+        if dated and len(dated) >= max(100, int(len(quotes) * 0.2)):
+            return dated
+        if dated:
+            return dated
+        if all(not item.get("quote_date") for item in quotes):
+            return quotes
+        raise RealtimeAggregateError(f"Eastmoney quotes are not for {want}")
+
+    def tencent_market_quotes(
+        self,
+        codes: list[str],
+        expected_date: str = "",
+    ) -> list[dict[str, Any]]:
+        symbols: list[str] = []
+        seen: set[str] = set()
+        for raw in codes:
+            ts = str(raw or "").strip().upper()
+            if not ts:
+                continue
+            symbol = ts.split(".")[0]
+            if not symbol.isdigit() or len(symbol) != 6 or symbol in seen:
+                continue
+            seen.add(symbol)
+            if ts.endswith(".SH") or symbol.startswith(("5", "6", "9")):
+                symbols.append(f"sh{symbol}")
+            elif ts.endswith(".BJ") or symbol.startswith(("4", "8")):
+                symbols.append(f"bj{symbol}")
+            else:
+                symbols.append(f"sz{symbol}")
+        if not symbols:
+            raise RealtimeAggregateError("No stock codes available for Tencent quotes")
+
+        quotes: list[dict[str, Any]] = []
+        batch_size = 80
+
+        def load_batch(batch: list[str]) -> list[dict[str, Any]]:
+            raw, _cache_age = self._get_text(
+                f"{TENCENT_QUOTE_URL}{','.join(batch)}",
+                referer="https://gu.qq.com/",
+                encoding="gb18030",
+            )
+            return [
+                quote
+                for line in raw.splitlines()
+                if (quote := _parse_tencent_stock_quote(line))
+            ]
+
+        batches = [symbols[index:index + batch_size] for index in range(0, len(symbols), batch_size)]
+        errors: list[str] = []
+        with ThreadPoolExecutor(max_workers=4) as executor:
+            for result in executor.map(self._capture, [lambda batch=batch: load_batch(batch) for batch in batches]):
+                rows, status = result
+                if status.get("ok") and rows:
+                    quotes.extend(rows)
+                elif not status.get("ok"):
+                    errors.append(str(status.get("error") or "batch failed"))
+        if len(quotes) < 200:
+            detail = f"；{'; '.join(errors[:3])}" if errors else ""
+            raise RealtimeAggregateError(
+                f"Tencent market snapshot too small: {len(quotes)}{detail}"
+            )
+        return self._filter_quotes_by_date(quotes, expected_date)
+
     def tencent_indices(self) -> list[dict[str, Any]]:
         raw, cache_age = self._get_text(
             TENCENT_INDEX_URL,
@@ -397,6 +546,94 @@ class WebRealtimeAggregator:
         ) from last_error
 
 
+def _diff_rows(data: dict[str, Any]) -> list[dict[str, Any]]:
+    diff = data.get("diff") or []
+    if isinstance(diff, dict):
+        return [row for row in diff.values() if isinstance(row, dict)]
+    return [row for row in diff if isinstance(row, dict)]
+
+
+def _parse_tencent_stock_quote(line: str) -> dict[str, Any] | None:
+    if '="' not in line:
+        return None
+    prefix, payload = line.split('="', 1)
+    fields = payload.rsplit('";', 1)[0].split("~")
+    if len(fields) < 38:
+        return None
+    symbol = fields[2]
+    if not symbol.isdigit() or len(symbol) != 6:
+        return None
+    close = _number(fields[3])
+    previous_close = _number(fields[4])
+    if close <= 0 or previous_close <= 0:
+        return None
+    marker = prefix.lower()
+    if "sh" in marker:
+        ts_code = f"{symbol}.SH"
+    elif "bj" in marker:
+        ts_code = f"{symbol}.BJ"
+    else:
+        ts_code = f"{symbol}.SZ"
+    try:
+        quote_time = datetime.strptime(fields[30], "%Y%m%d%H%M%S")
+        quote_date = quote_time.strftime("%Y%m%d")
+        epoch = int(quote_time.timestamp())
+    except ValueError:
+        quote_date = ""
+        epoch = 0
+    return {
+        "ts_code": ts_code,
+        "name": fields[1] or symbol,
+        "pre_close": previous_close,
+        "open": _number(fields[5]),
+        "high": _number(fields[33]),
+        "low": _number(fields[34]),
+        "close": close,
+        "vol": _number(fields[6]) * 100,
+        "amount": _number(fields[37]) * 10000,
+        "num": 0,
+        "quote_date": quote_date,
+        "quote_time_epoch": epoch,
+        "source": "tencent_qt",
+    }
+
+
+def _normalize_eastmoney_quote(row: dict[str, Any]) -> dict[str, Any] | None:
+    symbol = str(row.get("f12") or "").strip()
+    if not symbol.isdigit() or len(symbol) != 6:
+        return None
+    close = _number(row.get("f2"))
+    previous_close = _number(row.get("f18"))
+    if close <= 0 or previous_close <= 0:
+        return None
+    market = int(_number(row.get("f13")))
+    if market == 1 or symbol.startswith(("5", "6", "9")):
+        ts_code = f"{symbol}.SH"
+    elif symbol.startswith(("4", "8")):
+        ts_code = f"{symbol}.BJ"
+    else:
+        ts_code = f"{symbol}.SZ"
+    epoch = int(_number(row.get("f124")))
+    quote_date = ""
+    if epoch > 0:
+        quote_date = datetime.fromtimestamp(epoch).astimezone().strftime("%Y%m%d")
+    return {
+        "ts_code": ts_code,
+        "name": row.get("f14") or symbol,
+        "pre_close": previous_close,
+        "open": _number(row.get("f17")),
+        "high": _number(row.get("f15")),
+        "low": _number(row.get("f16")),
+        "close": close,
+        "vol": _number(row.get("f5")) * 100,
+        "amount": _number(row.get("f6")),
+        "num": 0,
+        "quote_date": quote_date,
+        "quote_time_epoch": epoch,
+        "source": "eastmoney_clist",
+    }
+
+
 def _normalize_sector(value: Any) -> str:
     text = str(value or "").strip().replace(" ", "")
     for suffix in ("板块", "概念", "行业", "Ⅱ", "Ⅲ", "(A股)", "（A股）"):

backend/features/market/service.py

@@ -63,7 +63,11 @@ class MarketServiceMixin:
         if gateway is not None:
             return gateway.tushare()
         # Compatibility for isolated legacy unit-test service stubs.
-        return TushareClient(self.token)
+        client = TushareClient(self.token)
+        aggregator = getattr(self, "realtime_aggregator", None)
+        if aggregator is not None:
+            client.realtime_aggregator = aggregator
+        return client
 
     def _now(self) -> datetime:
         clock = getattr(self, "clock", None)
@@ -289,7 +293,10 @@ class MarketServiceMixin:
                     raise TushareError("公共行情尚未配置")
                 dashboard = self._tushare_client().dashboard(normalized_date)
                 meta = dashboard.setdefault("meta", {})
+                quote_source = str(meta.get("quote_source") or "")
                 meta["source"] = source
+                if quote_source:
+                    meta["quote_source"] = quote_source
                 meta["requested_date"] = self._display_compact_date(normalized_date)
                 if meta.get("limit_data_source") == "derived":
                     meta.setdefault(

config/architecture-inventory.json

@@ -222,12 +222,12 @@
     {
       "provider": "eastmoney",
       "path": "backend/data/realtime.py",
-      "runtime_role": "isolated realtime observation"
+      "runtime_role": "isolated realtime observation and intraday dashboard fallback"
     },
     {
       "provider": "tencent",
       "path": "backend/data/realtime.py",
-      "runtime_role": "index observation fallback"
+      "runtime_role": "index observation and intraday quote fallback"
     }
   ],
   "provider_domains": [
@@ -508,8 +508,8 @@
     },
     {
       "path": "backend/data/providers/tushare_dashboard.py",
-      "bytes": 28327,
-      "lines": 654
+      "bytes": 31361,
+      "lines": 732
     },
     {
       "path": "backend/data/providers/tushare_industries.py",
@@ -631,6 +631,11 @@
       "bytes": 8357,
       "lines": 116
     },
+    {
+      "path": "backend/data/providers/tushare_indices.py",
+      "bytes": 7823,
+      "lines": 173
+    },
     {
       "path": "backend/features/screener/formula.py",
       "bytes": 6983,
@@ -686,11 +691,6 @@
       "bytes": 5690,
       "lines": 124
     },
-    {
-      "path": "backend/data/providers/tushare_indices.py",
-      "bytes": 5451,
-      "lines": 118
-    },
     {
       "path": "frontend/pages.config.js",
       "bytes": 5385,

docs/governance/architecture-inventory.json

@@ -213,12 +213,12 @@
     {
       "provider": "eastmoney",
       "path": "realtime_aggregator.py",
-      "runtime_role": "isolated realtime observation"
+      "runtime_role": "isolated realtime observation and intraday dashboard fallback"
     },
     {
       "provider": "tencent",
       "path": "realtime_aggregator.py",
-      "runtime_role": "index observation fallback"
+      "runtime_role": "index observation and intraday quote fallback"
     }
   ],
   "llm_entrypoints": [

tests/test_admin_refresh_status.py

@@ -150,6 +150,32 @@ class FakeRealtimeTodayClient:
         return requested, "20260907"
 
 
+class FakeFreeRealtimeTodayClient:
+    def dashboard(self, trade_date: str):
+        return {
+            "meta": {
+                "trade_date": f"{trade_date[:4]}-{trade_date[4:6]}-{trade_date[6:8]}",
+                "requested_date": f"{trade_date[:4]}-{trade_date[4:6]}-{trade_date[6:8]}",
+                "realtime": True,
+                "mode": "realtime",
+                "quote_source": "eastmoney_clist",
+                "source": "eastmoney",
+                "market_status": "trading",
+                "notice": "盘中行情由东财免费实时快照计算；涨停原因、封板时间和开板次数以盘后榜单校正为准。",
+                "updated_at": datetime.now().astimezone().isoformat(timespec="seconds"),
+                "indices": [{"code": "000001", "price": 3800.1, "change": 0.5}],
+            },
+            "overview": {"limit_up_count": 18, "up_count": 2100, "amount_billion": 12345.6},
+            "limits": [{"code": "000001"}],
+            "broken": [],
+            "down_limits": [],
+            "yesterday_limits": [],
+        }
+
+    def resolve_trade_context(self, requested: str):
+        return requested, "20260907"
+
+
 class SyncHarness(MarketServiceMixin):
     def __init__(self, client, latest=None, clock=None):
         self.configured = True
@@ -204,6 +230,28 @@ class DashboardFreshnessTests(unittest.TestCase):
         self.assertNotIn("今日数据正在准备", meta.get("display_notice") or "")
         self.assertEqual(harness.database.saved[0][0], today)
 
+    def test_intraday_free_source_keeps_today_and_indices(self):
+        today = TRADE_DAY.strftime("%Y%m%d")
+        latest = {
+            "meta": {"trade_date": "2026-09-07", "source": "tushare"},
+            "overview": {"limit_up_count": 20},
+        }
+        harness = SyncHarness(
+            FakeFreeRealtimeTodayClient(),
+            latest,
+            clock=lambda: at_clock(10, 5),
+        )
+        payload = harness.sync_dashboard(today)
+        meta = payload["meta"]
+        self.assertFalse(meta.get("carried_forward"))
+        self.assertTrue(meta["realtime"])
+        self.assertEqual(meta["data_status"], "intraday")
+        self.assertEqual(str(meta["trade_date"]).replace("-", ""), today)
+        self.assertEqual(meta["quote_source"], "eastmoney_clist")
+        self.assertEqual(payload["overview"]["amount_billion"], 12345.6)
+        self.assertEqual(meta["indices"][0]["price"], 3800.1)
+        self.assertEqual(harness.database.saved[0][0], today)
+
     def test_intraday_missing_quotes_do_not_carry_yesterday(self):
         today = TRADE_DAY.strftime("%Y%m%d")
         latest = {

tests/test_heaven_realtime.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 import http.client
 import json
 import unittest
+from datetime import datetime
 from unittest.mock import MagicMock, patch
 
 from backend.data.realtime import WebRealtimeAggregator
@@ -377,6 +378,43 @@ class RealtimeAggregatorTests(unittest.TestCase):
         self.assertEqual(rows[0]["quote_time"][:10], "2026-07-20")
         self.assertAlmostEqual(rows[0]["amount_billion"], 12946.52)
 
+    @patch.object(WebRealtimeAggregator, "_get_json")
+    def test_eastmoney_market_quotes_normalize_and_keep_expected_date(self, get_json: MagicMock):
+        epoch = datetime(2026, 7, 20, 10, 5).timestamp()
+        rows = []
+        for index in range(200):
+            sz = index < 100
+            rows.append(
+                {
+                    "f12": f"{index:06d}" if sz else f"{600000 + index - 100:06d}",
+                    "f13": 0 if sz else 1,
+                    "f14": f"股票{index}",
+                    "f2": 11.2,
+                    "f3": 2.0,
+                    "f5": 10,
+                    "f6": 50000000,
+                    "f15": 11.3,
+                    "f16": 11.0,
+                    "f17": 11.1,
+                    "f18": 11.0,
+                    "f124": epoch,
+                }
+            )
+        def fake_get_json(_url, params, referer=""):
+            page = int(params.get("pn") or 1)
+            start = (page - 1) * 100
+            return {"rc": 0, "data": {"total": 200, "diff": rows[start:start + 100]}}
+
+        get_json.side_effect = fake_get_json
+        aggregator = WebRealtimeAggregator()
+        aggregator._response_cache.clear()
+        quotes = aggregator.eastmoney_market_quotes("20260720")
+        self.assertEqual(len(quotes), 200)
+        self.assertEqual(quotes[0]["ts_code"], "000000.SZ")
+        self.assertTrue(quotes[100]["ts_code"].endswith(".SH"))
+        self.assertEqual(quotes[0]["vol"], 1000)
+        self.assertEqual(quotes[0]["quote_date"], "20260720")
+
 
 if __name__ == "__main__":
     unittest.main()

tests/test_realtime_dashboard.py

@@ -5,6 +5,12 @@ from datetime import datetime, timedelta, timezone
 
 from backend.data.providers.tushare_client import TushareClient
 from backend.data.providers.tushare_helpers import calendar_is_open
+from backend.data.providers.tushare_transport import TushareError
+from backend.data.realtime import (
+    RealtimeAggregateError,
+    _normalize_eastmoney_quote,
+    _parse_tencent_stock_quote,
+)
 
 
 class FakeRealtimeClient(TushareClient):
@@ -83,6 +89,65 @@ class FakeRealtimeClient(TushareClient):
         raise AssertionError(f"Unexpected API call: {api_name} {params}")
 
 
+FREE_QUOTES = [
+    {
+        "ts_code": "000001.SZ", "name": "甲", "pre_close": 10.0,
+        "open": 10.1, "high": 11.0, "low": 10.0, "close": 11.0,
+        "vol": 1000, "amount": 100000000, "num": 10,
+        "quote_date": "20260720",
+    },
+    {
+        "ts_code": "000002.SZ", "name": "乙", "pre_close": 20.0,
+        "open": 19.5, "high": 20.0, "low": 18.0, "close": 18.0,
+        "vol": 2000, "amount": 200000000, "num": 20,
+        "quote_date": "20260720",
+    },
+    {
+        "ts_code": "000003.SZ", "name": "丙", "pre_close": 30.0,
+        "open": 31.0, "high": 33.0, "low": 30.0, "close": 32.0,
+        "vol": 3000, "amount": 300000000, "num": 30,
+        "quote_date": "20260720",
+    },
+]
+
+
+class FakeFreeAggregator:
+    def __init__(self, quotes=None, fail=False):
+        self.quotes = list(quotes if quotes is not None else FREE_QUOTES)
+        self.fail = fail
+        self.calls = 0
+
+    def eastmoney_market_quotes(self, expected_date=""):
+        self.calls += 1
+        if self.fail:
+            raise RealtimeAggregateError("eastmoney down")
+        if expected_date and self.quotes:
+            dated = [
+                row for row in self.quotes
+                if str(row.get("quote_date") or "") == str(expected_date).replace("-", "")
+            ]
+            if dated:
+                return dated
+        return list(self.quotes)
+
+    def tencent_market_quotes(self, codes, expected_date=""):
+        return self.eastmoney_market_quotes(expected_date)
+
+    def eastmoney_indices(self):
+        return [
+            {
+                "code": "000001",
+                "name": "上证指数",
+                "price": 3800.12,
+                "change": 0.85,
+                "previous_close": 3768.0,
+                "amount_billion": 4200.5,
+                "quote_time": "2026-07-20T10:05:00+08:00",
+                "source": "eastmoney_push2",
+            }
+        ]
+
+
 class RealtimeDashboardTests(unittest.TestCase):
     def setUp(self):
         TushareClient._realtime_reference_cache.clear()
@@ -184,6 +249,121 @@ class RealtimeDashboardTests(unittest.TestCase):
         self.assertEqual(dashboard["meta"]["quote_count"], 3)
         self.assertEqual(dashboard["overview"]["limit_up_count"], 0)
 
+    def test_rt_k_permission_error_falls_back_to_free_quotes(self):
+        original_query = self.client.query
+
+        def query(api_name, params=None, fields=""):
+            if api_name == "rt_k":
+                raise TushareError("没有接口访问权限")
+            return original_query(api_name, params, fields)
+
+        self.client.query = query
+        self.client.realtime_aggregator = FakeFreeAggregator()
+        TushareClient._realtime_reference_cache.clear()
+        dashboard = self.client._realtime_dashboard("20260720", "20260720", "20260717")
+
+        self.assertTrue(dashboard["meta"]["realtime"])
+        self.assertEqual(dashboard["meta"]["quote_source"], "eastmoney_clist")
+        self.assertEqual(dashboard["meta"]["trade_date"], "2026-07-20")
+        self.assertEqual(dashboard["meta"]["quote_count"], 3)
+        self.assertEqual(dashboard["overview"]["limit_up_count"], 1)
+        self.assertEqual(dashboard["overview"]["limit_down_count"], 1)
+        self.assertEqual(dashboard["overview"]["amount_billion"], 6.0)
+        self.assertIn("东财免费实时", dashboard["meta"]["notice"])
+        self.assertEqual(dashboard["meta"]["indices"][0]["price"], 3800.12)
+
+    def test_rt_k_empty_result_falls_back_to_free_quotes(self):
+        original_query = self.client.query
+
+        def query(api_name, params=None, fields=""):
+            if api_name == "rt_k":
+                return []
+            return original_query(api_name, params, fields)
+
+        self.client.query = query
+        self.client.realtime_aggregator = FakeFreeAggregator()
+        TushareClient._realtime_reference_cache.clear()
+        dashboard = self.client._realtime_dashboard("20260720", "20260720", "20260717")
+        self.assertEqual(dashboard["meta"]["quote_source"], "eastmoney_clist")
+        self.assertEqual(str(dashboard["meta"]["trade_date"]).replace("-", ""), "20260720")
+
+    def test_rt_k_and_free_source_failure_keeps_today_error(self):
+        original_query = self.client.query
+
+        def query(api_name, params=None, fields=""):
+            if api_name == "rt_k":
+                raise TushareError("没有接口访问权限")
+            return original_query(api_name, params, fields)
+
+        self.client.query = query
+        self.client.realtime_aggregator = FakeFreeAggregator(fail=True)
+        TushareClient._realtime_reference_cache.clear()
+        with self.assertRaises(TushareError) as ctx:
+            self.client._realtime_dashboard("20260720", "20260720", "20260717")
+        self.assertIn("当天盘中实时行情不可用", str(ctx.exception))
+        self.assertIn("没有接口访问权限", str(ctx.exception))
+
+    def test_rt_k_and_eastmoney_failure_falls_back_to_tencent(self):
+        original_query = self.client.query
+
+        def query(api_name, params=None, fields=""):
+            if api_name == "rt_k":
+                raise TushareError("没有接口访问权限")
+            return original_query(api_name, params, fields)
+
+        class TencentOnlyAggregator(FakeFreeAggregator):
+            def eastmoney_market_quotes(self, expected_date=""):
+                raise RealtimeAggregateError("eastmoney blocked")
+
+            def tencent_market_quotes(self, codes, expected_date=""):
+                return list(FREE_QUOTES)
+
+        self.client.query = query
+        self.client.realtime_aggregator = TencentOnlyAggregator()
+        TushareClient._realtime_reference_cache.clear()
+        dashboard = self.client._realtime_dashboard("20260720", "20260720", "20260717")
+        self.assertEqual(dashboard["meta"]["quote_source"], "tencent_qt")
+        self.assertEqual(str(dashboard["meta"]["trade_date"]).replace("-", ""), "20260720")
+        self.assertIn("腾讯免费实时", dashboard["meta"]["notice"])
+        self.assertEqual(dashboard["overview"]["amount_billion"], 6.0)
+
+    def test_normalize_eastmoney_quote_maps_units_and_exchange(self):
+        quote = _normalize_eastmoney_quote(
+            {
+                "f12": "600000",
+                "f13": 1,
+                "f14": "浦发银行",
+                "f2": 10.5,
+                "f5": 12.0,
+                "f6": 200000000,
+                "f15": 10.8,
+                "f16": 10.2,
+                "f17": 10.3,
+                "f18": 10.0,
+                "f124": 1752986700,
+            }
+        )
+        self.assertEqual(quote["ts_code"], "600000.SH")
+        self.assertEqual(quote["vol"], 1200)
+        self.assertEqual(quote["close"], 10.5)
+        self.assertEqual(quote["pre_close"], 10.0)
+        self.assertEqual(quote["source"], "eastmoney_clist")
+
+    def test_parse_tencent_stock_quote_keeps_today_and_units(self):
+        line = (
+            'v_sz000001="51~平安银行~000001~11.73~11.70~11.66~346232~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~'
+            '~20260720100500~0.03~0.26~11.79~11.65~11.73/346232/406045563~346232~40605~0.18~5.24~~11.79~11.65~1.20~'
+            '2276.29~2276.31~0.49~12.87~10.53~0.95~-3076~11.73~4.43~5.34~~~0.18~40604.5563~0.0000~0~";'
+        )
+        quote = _parse_tencent_stock_quote(line)
+        self.assertEqual(quote["ts_code"], "000001.SZ")
+        self.assertEqual(quote["quote_date"], "20260720")
+        self.assertEqual(quote["close"], 11.73)
+        self.assertEqual(quote["pre_close"], 11.70)
+        self.assertEqual(quote["vol"], 34623200)
+        self.assertEqual(quote["amount"], 406050000)
+        self.assertEqual(quote["source"], "tencent_qt")
+
 
 if __name__ == "__main__":
     unittest.main()

tools/build_architecture_inventory.py

@@ -221,8 +221,8 @@ def build() -> dict[str, Any]:
             {"provider": "datahub", "path": "backend/data/datahub/client.py", "runtime_role": "optional official EOD read path behind per-dataset flags"},
             {"provider": "ifind", "path": "backend/data/providers/ifind_client.py", "runtime_role": "realtime, charts, snapshots, enrichment"},
             {"provider": "eastmoney", "path": "backend/features/market/charts.py", "runtime_role": "display chart fallback"},
-            {"provider": "eastmoney", "path": "backend/data/realtime.py", "runtime_role": "isolated realtime observation"},
-            {"provider": "tencent", "path": "backend/data/realtime.py", "runtime_role": "index observation fallback"},
+            {"provider": "eastmoney", "path": "backend/data/realtime.py", "runtime_role": "isolated realtime observation and intraday dashboard fallback"},
+            {"provider": "tencent", "path": "backend/data/realtime.py", "runtime_role": "index observation and intraday quote fallback"},
         ],
         "provider_domains": [
             {"provider": "tushare", "path": "backend/data/providers/tushare_transport.py", "responsibility": "HTTP transport and provider errors"},