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/datahub/bridge.py

@@ -21,6 +21,26 @@ from backend.data.providers.tushare_client import TushareClient
 
 LOGGER = logging.getLogger("xiaobai.datahub")
 ShadowSink = Callable[[dict[str, Any]], None]
+
+
+def _usable_intraday_points(rows: list[Any]) -> list[dict[str, Any]]:
+    points: list[dict[str, Any]] = []
+    for row in rows:
+        if not isinstance(row, dict):
+            continue
+        try:
+            close = float(row.get("close") or 0)
+        except (TypeError, ValueError):
+            close = 0.0
+        if close <= 0:
+            continue
+        point = dict(row)
+        if "average" not in point and point.get("avg_price") is not None:
+            point["average"] = point.get("avg_price")
+        points.append(point)
+    return points
+
+
 EMPTY_FAIL_DATASETS = {
     "stocks", "daily", "index_daily", "valuation", "moneyflow", "auction",
     "limit_events", "sector_daily",
@@ -91,6 +111,34 @@ class DatahubBridge:
             self._log_failure("status", exc)
             return None
 
+    def try_intraday(self, code: str) -> dict[str, Any] | None:
+        flags = self.settings.flags("intraday")
+        if not flags.read:
+            return None
+        try:
+            response = self.client.intraday_points(code=code)
+            data = response.data
+            if not isinstance(data, dict):
+                raise DatahubError("EMPTY", "datahub intraday payload invalid")
+            points = _usable_intraday_points(data.get("points") or [])
+            if not points:
+                raise DatahubError("EMPTY", "datahub intraday empty")
+            if (response.meta or {}).get("stale"):
+                raise DatahubError("STALE", "datahub intraday stale")
+            return {
+                "entity_type": str(data.get("entity_type") or "stock"),
+                "identifier": str(data.get("identifier") or code),
+                "name": str(data.get("name") or ""),
+                "code": str(data.get("code") or code),
+                "trade_date": str(data.get("trade_date") or points[-1].get("date") or ""),
+                "previous_close": float(data.get("previous_close") or 0),
+                "points": points,
+                "source": "datahub",
+            }
+        except Exception as exc:
+            self._log_failure("intraday", exc)
+            return None
+
     def query(
         self,
         api_name: str,

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)
@@ -85,12 +87,13 @@ def build_data_gateway(
     policy = DataSourcePolicy.load()
     settings = datahub_settings or DatahubSettings.load(credentials=credentials)
     datahub_client = DatahubClient(settings)
+    datahub = DatahubBridge(settings, datahub_client)
     return DataGateway(
         policy=policy,
         quality=DataQualityGate.load(policy),
         tushare_provider=TushareProvider(token_supplier),
         ifind_provider=IfindProvider(ifind),
-        chart_data=MarketChartClient(ifind, EastmoneyChartClient()),
+        chart_data=MarketChartClient(ifind, EastmoneyChartClient(), datahub),
         realtime_observer=WebRealtimeAggregator(),
-        datahub=DatahubBridge(settings, datahub_client),
+        datahub=datahub,
     )

backend/data/providers/tushare_daily.py

@@ -3,7 +3,11 @@ from __future__ import annotations
 from typing import Any
 
 from backend.data.numbers import finite_number as _number
-from backend.data.providers.tushare_helpers import _display_time, _prices_equal
+from backend.data.providers.tushare_helpers import (
+    _display_time,
+    _prices_equal,
+    calendar_is_open,
+)
 
 
 class DailyMarketMixin:
@@ -17,7 +21,11 @@ class DailyMarketMixin:
             trade_date = requested
         else:
             row = requested_rows[0]
-            trade_date = row["cal_date"] if row.get("is_open") == 1 else row.get("pretrade_date", requested)
+            trade_date = (
+                row["cal_date"]
+                if calendar_is_open(row.get("is_open"))
+                else row.get("pretrade_date", requested)
+            )
 
         resolved_rows = self.query(
             "trade_cal",

backend/data/providers/tushare_dashboard.py

@@ -16,6 +16,12 @@ from backend.data.providers.tushare_transport import TushareError
 
 
 class DashboardMixin:
+    def _now(self) -> datetime:
+        clock = getattr(self, "clock", None)
+        if callable(clock):
+            return clock()
+        return datetime.now().astimezone()
+
     def dashboard(self, requested_date: str) -> dict[str, Any]:
         trade_date, previous_trade_date = self.resolve_trade_context(requested_date)
         if self.should_use_realtime(requested_date, trade_date):
@@ -26,11 +32,12 @@ class DashboardMixin:
             )
 
         daily = self._load_daily(trade_date)
+        now = self._now()
         if (
             not daily
-            and requested_date == datetime.now().astimezone().strftime("%Y%m%d")
+            and requested_date == now.strftime("%Y%m%d")
             and trade_date == requested_date
-            and datetime.now().astimezone().time().replace(tzinfo=None) >= dt_time(9, 15)
+            and now.time().replace(tzinfo=None) >= dt_time(9, 15)
         ):
             return self._realtime_dashboard(
                 requested_date,
@@ -98,15 +105,14 @@ class DashboardMixin:
         }
         return apply_sentiment_to_dashboard(dashboard)
 
-    @staticmethod
-    def should_use_realtime(requested_date: str, trade_date: str) -> bool:
-        """Use rt_k for today's open market until end-of-day datasets settle."""
-        now = datetime.now().astimezone()
+    def should_use_realtime(self, requested_date: str, trade_date: str) -> bool:
+        """Use live quotes for today's open session until official daily settles."""
+        now = self._now()
         today = now.strftime("%Y%m%d")
         return (
             requested_date == today
             and trade_date == today
-            and dt_time(9, 15) <= now.time().replace(tzinfo=None) < dt_time(16, 30)
+            and dt_time(9, 15) <= now.time().replace(tzinfo=None) < dt_time(15, 5)
         )
 
     def _realtime_dashboard(
@@ -122,7 +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}")
 
@@ -178,14 +184,30 @@ class DashboardMixin:
         )
         sectors = _build_sectors(limits)
         previous_sectors = _build_sectors(previous_limits)
-        now = datetime.now().astimezone()
+        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,
@@ -193,7 +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,
@@ -207,6 +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,
@@ -234,7 +318,7 @@ class DashboardMixin:
             {"trade_date": previous_trade_date},
             "ts_code,trade_date,total_share,float_share,free_share,total_mv,circ_mv",
         )
-        if not basic_rows or not price_limits:
+        if not basic_rows:
             raise TushareError(f"Realtime reference data is incomplete for {trade_date}")
         result = {
             "basic_rows": basic_rows,

backend/data/providers/tushare_helpers.py

@@ -6,6 +6,17 @@ from typing import Any
 from backend.data.numbers import finite_number as _number
 
 
+def calendar_is_open(value: Any) -> bool:
+    if value in (True, 1, "1", "Y", "y"):
+        return True
+    if value in (False, 0, "0", "N", "n", None, ""):
+        return False
+    try:
+        return int(value) == 1
+    except (TypeError, ValueError):
+        return False
+
+
 def _text(value: Any) -> str:
     if isinstance(value, (list, tuple, set)):
         return "、".join(str(item).strip() for item in value if str(item).strip())

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/charts.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import http.client
 import json
+import logging
 import re
 import time
 import urllib.error
@@ -15,12 +16,15 @@ from typing import Any, ClassVar
 from backend.bootstrap.config import tushare_code as _stock_market_code
 from backend.data.providers.ifind_client import IfindError, IfindHttpClient
 
+LOGGER = logging.getLogger("xiaobai.charts")
+
 
 class ChartDataError(RuntimeError):
     pass
 
 
 TRENDS_URL = "https://push2delay.eastmoney.com/api/qt/stock/trends2/get"
+HIS_TRENDS_URL = "https://push2his.eastmoney.com/api/qt/stock/trends2/get"
 BOARD_LIST_URL = "https://push2delay.eastmoney.com/api/qt/clist/get"
 BROWSER_USER_AGENT = (
     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
@@ -37,14 +41,23 @@ INDEX_SECIDS = {
 class MarketChartClient:
     """Prefer iFinD for display charts and retain Eastmoney as a last resort."""
 
-    def __init__(self, ifind: IfindHttpClient, fallback: "EastmoneyChartClient") -> None:
+    def __init__(
+        self,
+        ifind: IfindHttpClient,
+        fallback: "EastmoneyChartClient",
+        datahub: Any = None,
+    ) -> None:
         self.ifind = ifind
         self.fallback = fallback
+        self.datahub = datahub
 
     def stock_intraday(self, code: str) -> dict[str, Any]:
         normalized = str(code or "").strip()
         if not re.fullmatch(r"\d{6}", normalized):
             raise ChartDataError("Invalid stock code")
+        hub_chart = self._datahub_intraday(normalized)
+        if hub_chart is not None:
+            return hub_chart
         ifind_code = _stock_market_code(normalized)
         try:
             return self._ifind_intraday(ifind_code, "stock", normalized)
@@ -73,11 +86,29 @@ class MarketChartClient:
         normalized = str(identifier or "").strip().upper()
         if normalized not in INDEX_SECIDS:
             raise ChartDataError("Unsupported index")
+        hub_chart = self._datahub_intraday(normalized)
+        if hub_chart is not None:
+            return hub_chart
         try:
             return self._ifind_intraday(normalized, "index", normalized)
         except (IfindError, ChartDataError):
             return self.fallback.index_intraday(normalized)
 
+    def _datahub_intraday(self, code: str) -> dict[str, Any] | None:
+        if self.datahub is None:
+            return None
+        try:
+            chart = self.datahub.try_intraday(code)
+        except Exception as exc:
+            LOGGER.warning("datahub intraday unexpected error: %s", exc)
+            return None
+        if not chart:
+            return None
+        points = list(chart.get("points") or [])
+        if not points:
+            return None
+        return chart
+
     def board_intraday(self, identifier: str, name: str = "") -> dict[str, Any]:
         normalized = str(identifier or "").strip().upper()
         try:
@@ -305,21 +336,29 @@ class EastmoneyChartClient:
         if cached is not None:
             return cached
 
-        payload = self._request_json(
-            TRENDS_URL,
-            {
+        params = {
             "secid": secid,
             "fields1": "f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13",
             "fields2": "f51,f52,f53,f54,f55,f56,f57,f58",
             "iscr": "0",
-                "ndays": "1",
-            },
-            "https://quote.eastmoney.com/",
-        )
+        }
+        last_error: Exception | None = None
+        data: dict[str, Any] = {}
+        points: list[dict[str, Any]] = []
+        for url, ndays in ((TRENDS_URL, "1"), (TRENDS_URL, "5"), (HIS_TRENDS_URL, "5")):
+            request_params = {**params, "ndays": ndays}
+            try:
+                payload = self._request_json(url, request_params, "https://quote.eastmoney.com/")
+            except ChartDataError as exc:
+                last_error = exc
+                continue
             data = payload.get("data") or {}
-        points = [point for raw in data.get("trends") or [] if (point := _parse_trend(raw))]
+            parsed = [point for raw in data.get("trends") or [] if (point := _parse_trend(raw))]
+            points = _latest_session(parsed)
+            if points:
+                break
         if not points:
-            raise ChartDataError("No intraday chart data returned")
+            raise ChartDataError("No intraday chart data returned") from last_error
 
         result = {
             "entity_type": entity_type,
@@ -433,6 +472,15 @@ class EastmoneyChartClient:
         raise ChartDataError("Intraday chart request failed") from last_error
 
 
+def _latest_session(points: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    if not points:
+        return []
+    latest = max(str(point.get("date") or "") for point in points)
+    if not latest:
+        return points
+    return [point for point in points if str(point.get("date") or "") == latest]
+
+
 def _parse_trend(raw: Any) -> dict[str, Any] | None:
     fields = str(raw or "").split(",")
     if len(fields) < 8 or " " not in fields[0]:

backend/features/market/service.py

@@ -63,11 +63,37 @@ 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)
+        if callable(clock):
+            return clock()
+        return datetime.now().astimezone()
+
+    def _is_requested_open_session(self, requested_date: str) -> bool:
+        now = self._now()
+        if requested_date != now.strftime("%Y%m%d"):
+            return False
+        if now.time().replace(tzinfo=None) < dt_time(9, 15):
+            return False
+        client = self._tushare_client() if self.configured else None
+        resolve = getattr(client, "resolve_trade_context", None) if client else None
+        if resolve is None:
+            return now.weekday() < 5
+        try:
+            trade_date, _ = resolve(requested_date)
+        except Exception:
+            return now.weekday() < 5
+        return str(trade_date or "") == requested_date
 
     def get_dashboard(self, trade_date: str, force: bool = False) -> dict[str, Any]:
         normalized_date = normalize_date(trade_date)
-        now = datetime.now().astimezone()
+        now = self._now()
         if (
             normalized_date == now.strftime("%Y%m%d")
             and now.time().replace(tzinfo=None) < datetime.strptime("09:15", "%H:%M").time()
@@ -174,14 +200,14 @@ class MarketServiceMixin:
     def _should_retry_incomplete_snapshot(
         self, snapshot: dict[str, Any], requested_date: str
     ) -> bool:
-        if requested_date != date.today().strftime("%Y%m%d"):
+        if requested_date != self._now().strftime("%Y%m%d"):
             return False
         meta = snapshot.get("meta") or {}
-        incomplete = (
-            meta.get("limit_data_source") == "derived"
-            or bool(meta.get("carried_forward"))
-            or str(meta.get("trade_date") or "").replace("-", "") != requested_date
-        )
+        actual = str(meta.get("trade_date") or "").replace("-", "")
+        stale_carry = bool(meta.get("carried_forward") or actual != requested_date)
+        if stale_carry and self._is_requested_open_session(requested_date):
+            return True
+        incomplete = meta.get("limit_data_source") == "derived" or stale_carry
         return incomplete and self._snapshot_age_seconds(meta) >= 60
 
     def _annotate_data_status(self, dashboard: dict[str, Any]) -> dict[str, Any]:
@@ -199,6 +225,9 @@ class MarketServiceMixin:
             else:
                 meta["data_status"] = "preparing"
                 meta["display_notice"] = self._preparing_display_notice(actual, requested)
+        elif meta.get("realtime"):
+            meta["data_status"] = "intraday"
+            meta.setdefault("display_notice", "")
         else:
             meta["data_status"] = "official"
             meta.setdefault("display_notice", "")
@@ -225,9 +254,9 @@ class MarketServiceMixin:
         normalized_date: str,
         snapshot: dict[str, Any],
     ) -> bool:
-        if not self.configured or normalized_date != date.today().strftime("%Y%m%d"):
+        if not self.configured or normalized_date != self._now().strftime("%Y%m%d"):
             return False
-        now = datetime.now().astimezone()
+        now = self._now()
         local_time = now.time().replace(tzinfo=None)
         realtime_start = datetime.strptime("09:15", "%H:%M").time()
         morning_end = datetime.strptime("11:35", "%H:%M").time()
@@ -264,7 +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(
@@ -276,6 +308,12 @@ class MarketServiceMixin:
                 actual_date = normalize_date(
                     str(dashboard.get("meta", {}).get("trade_date") or normalized_date)
                 )
+                if actual_date != normalized_date and self._is_requested_open_session(
+                    normalized_date
+                ):
+                    raise TushareError(
+                        f"Intraday dashboard resolved {actual_date} instead of {normalized_date}"
+                    )
                 self.database.save_snapshot(actual_date, source, dashboard)
                 if actual_date != normalized_date:
                     dashboard.setdefault("meta", {}).update(
@@ -297,6 +335,30 @@ class MarketServiceMixin:
                 )
                 return self._apply_reason_overrides(self._with_storage(dashboard, cached=False))
             except TushareError as exc:
+                if self._is_requested_open_session(normalized_date):
+                    existing = self.database.get_snapshot(normalized_date)
+                    existing_date = str(
+                        ((existing or {}).get("meta") or {}).get("trade_date") or ""
+                    ).replace("-", "")
+                    if existing and existing_date == normalized_date:
+                        kept = copy.deepcopy(existing)
+                        kept.setdefault("meta", {}).update(
+                            {
+                                "requested_date": self._display_compact_date(normalized_date),
+                            }
+                        )
+                        self.database.finish_sync(
+                            sync_id,
+                            "fallback",
+                            self._record_count(kept),
+                            str(exc),
+                            "tushare",
+                        )
+                        return self._apply_reason_overrides(
+                            self._with_storage(kept, cached=True)
+                        )
+                    self.database.finish_sync(sync_id, "failed", message=str(exc))
+                    raise ValueError("当天盘中行情暂时不可用，请稍后重试。") from exc
                 fallback = self.database.get_latest_real_snapshot(normalized_date)
                 if fallback:
                     actual = str((fallback.get("meta") or {}).get("trade_date") or "")

backend/jobs/refresh.py

@@ -41,6 +41,8 @@ def official_catchup_due(today: str, snapshot: dict[str, object]) -> bool:
         actual == today
         and meta.get("limit_data_source") != "derived"
         and not meta.get("carried_forward")
+        and not meta.get("realtime")
+        and meta.get("mode") != "realtime"
     ):
         return False
     return True

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": 28234,
-      "lines": 648
+      "bytes": 31361,
+      "lines": 732
     },
     {
       "path": "backend/data/providers/tushare_industries.py",
@@ -551,6 +551,11 @@
       "bytes": 15311,
       "lines": 387
     },
+    {
+      "path": "frontend/shared/dashboard.js",
+      "bytes": 15063,
+      "lines": 321
+    },
     {
       "path": "frontend/pages/pools/page.html",
       "bytes": 14942,
@@ -561,11 +566,6 @@
       "bytes": 14743,
       "lines": 342
     },
-    {
-      "path": "frontend/shared/dashboard.js",
-      "bytes": 14740,
-      "lines": 316
-    },
     {
       "path": "frontend/shared/admin.js",
       "bytes": 14410,
@@ -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,
@@ -638,8 +643,8 @@
     },
     {
       "path": "backend/data/providers/tushare_daily.py",
-      "bytes": 6837,
-      "lines": 160
+      "bytes": 6949,
+      "lines": 168
     },
     {
       "path": "backend/application.py",
@@ -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,
@@ -786,6 +786,11 @@
       "bytes": 2514,
       "lines": 63
     },
+    {
+      "path": "backend/data/providers/tushare_helpers.py",
+      "bytes": 2360,
+      "lines": 75
+    },
     {
       "path": "backend/jobs/service.py",
       "bytes": 2337,
@@ -811,11 +816,6 @@
       "bytes": 2165,
       "lines": 35
     },
-    {
-      "path": "backend/data/providers/tushare_helpers.py",
-      "bytes": 2083,
-      "lines": 64
-    },
     {
       "path": "frontend/pages/market/breadth.js",
       "bytes": 2071,
@@ -827,13 +827,13 @@
       "lines": 45
     },
     {
-      "path": "backend/features/system/routes.py",
-      "bytes": 1791,
-      "lines": 46
+      "path": "backend/jobs/refresh.py",
+      "bytes": 1808,
+      "lines": 48
     },
     {
-      "path": "backend/jobs/refresh.py",
-      "bytes": 1728,
+      "path": "backend/features/system/routes.py",
+      "bytes": 1791,
       "lines": 46
     },
     {

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": [

frontend/shared/dashboard.js

@@ -67,6 +67,11 @@ async function startAdminRefresh() {
     const actualCompact = actualDate.replaceAll("-", "");
     const updated = formatTimestamp(meta.updated_at);
     const freshness = dashboardFreshnessMessage(meta);
+    if (meta.realtime && actualCompact === requestedCompact && !meta.carried_forward) {
+      setAdminRefreshStatus("success", `刷新成功：已获取 ${actualDate} 的盘中行情，更新时间 ${updated}`, "circle-check");
+      showToast(`刷新成功：已获取 ${actualDate} 的盘中行情`);
+      return;
+    }
     if (freshness || actualCompact !== requestedCompact || meta.carried_forward || meta.limit_data_source === "derived") {
       setAdminRefreshStatus("warning", freshness || `部分正式数据尚未到齐，当前展示 ${actualDate || "最近可用数据"}`, "triangle-alert");
       setStatus(freshness || "部分正式数据尚未到齐，当前展示最近可用数据");

tests/test_admin_refresh_status.py

@@ -3,7 +3,8 @@ from __future__ import annotations
 import copy
 import threading
 import unittest
-from datetime import date, datetime, timedelta, timezone
+from datetime import date, datetime, timedelta, timezone, time as dt_time
+from unittest.mock import patch
 from pathlib import Path
 
 from backend.features.market.service import MarketServiceMixin
@@ -105,18 +106,84 @@ class FakeDerivedClient:
         }
 
 
+SHANGHAI = timezone(timedelta(hours=8))
+TRADE_DAY = date(2026, 9, 8)
+
+
+def at_clock(hour: int, minute: int, day: date = TRADE_DAY) -> datetime:
+    return datetime(day.year, day.month, day.day, hour, minute, tzinfo=SHANGHAI)
+
+
 class FakeMissingDailyClient:
+    def __init__(self, open_today: bool = True):
+        self.open_today = open_today
+
     def dashboard(self, trade_date: str):
         raise TushareError(f"No daily data returned for {trade_date}")
 
+    def resolve_trade_context(self, requested: str):
+        if self.open_today:
+            return requested, "20260907"
+        return "20260907", "20260904"
+
+
+class FakeRealtimeTodayClient:
+    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",
+                "market_status": "trading",
+                "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。",
+                "updated_at": datetime.now().astimezone().isoformat(timespec="seconds"),
+            },
+            "overview": {"limit_up_count": 15},
+            "limits": [{"code": "000001"}],
+            "broken": [],
+            "down_limits": [],
+            "yesterday_limits": [],
+        }
+
+    def resolve_trade_context(self, requested: str):
+        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):
+    def __init__(self, client, latest=None, clock=None):
         self.configured = True
         self.sync_lock = threading.Lock()
         self.database = FakeSyncDatabase(latest)
         self._client = client
         self.current_user_id = 1
+        self.clock = clock
 
     def _tushare_client(self):
         return self._client
@@ -142,23 +209,161 @@ class DashboardFreshnessTests(unittest.TestCase):
         self.assertEqual(harness.database.finished[0][0][1], "success")
         self.assertEqual(verified_dashboard_result(payload), payload)
 
-    def test_missing_official_data_keeps_previous_day_with_preparing_notice(self):
-        today = date.today()
-        previous = (today - timedelta(days=1)).strftime("%Y-%m-%d")
+    def test_intraday_refresh_keeps_today_and_does_not_fall_back_to_yesterday(self):
+        today = TRADE_DAY.strftime("%Y%m%d")
         latest = {
-            "meta": {"trade_date": previous, "source": "tushare"},
+            "meta": {"trade_date": "2026-09-07", "source": "tushare"},
             "overview": {"limit_up_count": 20},
         }
-        harness = SyncHarness(FakeMissingDailyClient(), latest)
-        payload = harness.sync_dashboard(today.strftime("%Y%m%d"))
+        harness = SyncHarness(
+            FakeRealtimeTodayClient(),
+            latest,
+            clock=lambda: at_clock(10, 5),
+        )
+        payload = harness.sync_dashboard(today)
         meta = payload["meta"]
 
-        self.assertTrue(meta["carried_forward"])
-        self.assertEqual(meta["data_status"], "preparing")
-        self.assertIn("今日数据正在准备，当前展示", meta["display_notice"])
-        self.assertIn("月", meta["display_notice"])
-        self.assertNotIn("No daily data", meta["display_notice"])
-        self.assertNotEqual(verified_dashboard_result(payload).get("status"), "failed")
+        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.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 = {
+            "meta": {"trade_date": "2026-09-07", "source": "tushare"},
+            "overview": {"limit_up_count": 20},
+        }
+        harness = SyncHarness(
+            FakeMissingDailyClient(),
+            latest,
+            clock=lambda: at_clock(10, 5),
+        )
+        with self.assertRaises(ValueError) as ctx:
+            harness.sync_dashboard(today)
+        self.assertIn("当天盘中行情", str(ctx.exception))
+        self.assertFalse(harness.database.saved)
+
+    def test_intraday_keeps_existing_today_snapshot_when_refresh_fails(self):
+        today = TRADE_DAY.strftime("%Y%m%d")
+        existing = {
+            "meta": {
+                "trade_date": "2026-09-08",
+                "realtime": True,
+                "mode": "realtime",
+                "source": "tushare",
+            },
+            "overview": {"limit_up_count": 11},
+            "limits": [{"code": "600000"}],
+            "broken": [],
+            "down_limits": [],
+            "yesterday_limits": [],
+        }
+        harness = SyncHarness(
+            FakeMissingDailyClient(),
+            clock=lambda: at_clock(10, 5),
+        )
+        harness.database.get_snapshot = lambda *_args, **_kwargs: copy.deepcopy(existing)
+        payload = harness.sync_dashboard(today)
+        meta = payload["meta"]
+        self.assertEqual(str(meta["trade_date"]).replace("-", ""), today)
+        self.assertTrue(meta["realtime"])
+        self.assertEqual(meta["data_status"], "intraday")
+        self.assertFalse(meta.get("carried_forward"))
+
+    def test_lunch_and_after_hours_keep_today_until_official_arrives(self):
+        today = TRADE_DAY.strftime("%Y%m%d")
+        for clock in (lambda: at_clock(12, 0), lambda: at_clock(16, 10)):
+            harness = SyncHarness(
+                FakeRealtimeTodayClient(),
+                clock=clock,
+            )
+            payload = harness.sync_dashboard(today)
+            self.assertEqual(str(payload["meta"]["trade_date"]).replace("-", ""), today)
+            self.assertFalse(payload["meta"].get("carried_forward"))
+
+    def test_preopen_and_weekend_still_carry_last_session(self):
+        latest = {
+            "meta": {"trade_date": "2026-09-07", "source": "tushare"},
+            "overview": {"limit_up_count": 20},
+        }
+        preopen = SyncHarness(
+            FakeMissingDailyClient(),
+            latest,
+            clock=lambda: at_clock(8, 30),
+        )
+        preopen_payload = preopen.sync_dashboard(TRADE_DAY.strftime("%Y%m%d"))
+        self.assertTrue(preopen_payload["meta"]["carried_forward"])
+        self.assertEqual(preopen_payload["meta"]["data_status"], "preparing")
+        self.assertIn("今日数据正在准备，当前展示", preopen_payload["meta"]["display_notice"])
+
+        weekend = SyncHarness(
+            FakeMissingDailyClient(open_today=False),
+            latest,
+            clock=lambda: at_clock(10, 5, date(2026, 9, 5)),
+        )
+        weekend_payload = weekend.sync_dashboard("20260905")
+        self.assertTrue(weekend_payload["meta"]["carried_forward"])
+
+    def test_history_date_still_uses_official_or_preparing_notice(self):
+        latest = {
+            "meta": {"trade_date": "2026-09-01", "source": "tushare"},
+            "overview": {"limit_up_count": 8},
+        }
+        harness = SyncHarness(
+            FakeMissingDailyClient(),
+            latest,
+            clock=lambda: at_clock(10, 5),
+        )
+        payload = harness.sync_dashboard("20260902")
+        self.assertTrue(payload["meta"]["carried_forward"])
+        self.assertIn("所选日期数据尚未到齐", payload["meta"]["display_notice"])
+
+    def test_carried_today_snapshot_is_retried_immediately_in_session(self):
+        today = TRADE_DAY.strftime("%Y%m%d")
+        snapshot = {
+            "meta": {
+                "source": "tushare",
+                "trade_date": "2026-09-07",
+                "carried_forward": True,
+                "requested_date": "2026-09-08",
+                "updated_at": at_clock(10, 0).isoformat(),
+            },
+            "overview": {"limit_up_count": 1},
+        }
+        harness = SyncHarness(
+            FakeRealtimeTodayClient(),
+            clock=lambda: at_clock(10, 5),
+        )
+        harness.database.get_snapshot = lambda *_args, **_kwargs: copy.deepcopy(snapshot)
+        payload = harness.get_dashboard(today)
+        self.assertEqual(str(payload["meta"]["trade_date"]).replace("-", ""), today)
+        self.assertEqual(payload["meta"]["data_status"], "intraday")
+        self.assertTrue(harness.database.saved)
 
     def test_weekend_carry_is_not_labeled_as_preparing(self):
         snapshot = {
@@ -200,19 +405,43 @@ class DashboardFreshnessTests(unittest.TestCase):
             {"meta": {"trade_date": iso, "limit_data_source": "derived"}},
         )
         now = datetime.now().astimezone().time().replace(tzinfo=None)
-        if datetime.strptime("15:05", "%H:%M").time() <= now < datetime.strptime("22:00", "%H:%M").time():
+        if dt_time(15, 5) <= now < dt_time(22, 0):
             self.assertFalse(due)
             self.assertTrue(derived_due)
         else:
             self.assertFalse(due)
             self.assertFalse(derived_due)
 
+    def test_official_catchup_is_due_for_intraday_snapshot_after_close(self):
+        today = TRADE_DAY.strftime("%Y%m%d")
+        snapshot = {
+            "meta": {
+                "trade_date": "2026-09-08",
+                "realtime": True,
+                "mode": "realtime",
+            }
+        }
+        with patch("backend.jobs.refresh.datetime") as mocked:
+            mocked.now.return_value = at_clock(16, 10)
+            mocked.strptime = datetime.strptime
+            self.assertTrue(official_catchup_due(today, snapshot))
+            official = {
+                "meta": {
+                    "trade_date": "2026-09-08",
+                    "limit_data_source": "official",
+                    "realtime": False,
+                }
+            }
+            self.assertFalse(official_catchup_due(today, official))
+
 
 class FrontendRefreshCopyTests(unittest.TestCase):
     def test_dashboard_script_distinguishes_partial_from_failure(self):
         script = (Path(__file__).resolve().parents[1] / "frontend" / "shared" / "dashboard.js").read_text(encoding="utf-8")
         self.assertIn("今日数据正在准备，当前展示", script)
         self.assertIn("部分正式数据尚未到齐", script)
+        self.assertIn("盘中行情", script)
+        self.assertIn("meta.realtime && actualCompact === requestedCompact", script)
         self.assertIn('job.status === "failed"', script)
         failed_block = script.split("if (job.status === \"failed\")", 1)[1].split("const query", 1)[0]
         self.assertIn("后台刷新失败", failed_block)

tests/test_chart_data_provider.py

@@ -2,7 +2,8 @@ from __future__ import annotations
 
 import unittest
 
-from backend.features.market.charts import ChartDataError, EastmoneyChartClient
+from backend.data.providers.ifind_client import IfindHttpClient
+from backend.features.market.charts import ChartDataError, EastmoneyChartClient, HIS_TRENDS_URL, MarketChartClient, TRENDS_URL
 from server import DashboardService
 
 
@@ -72,6 +73,141 @@ class ChartDataProviderTests(unittest.TestCase):
             self.client.stock_intraday("abc")
 
 
+class LookbackChartClient(EastmoneyChartClient):
+    def __init__(self) -> None:
+        super().__init__(cache_ttl_seconds=20)
+        self.requests: list[tuple[str, dict[str, str]]] = []
+
+    def _request_json(self, url, params, referer):
+        self.requests.append((url, params))
+        if url == TRENDS_URL and params.get("ndays") == "1":
+            return {"data": {"code": "601318", "name": "中国平安", "preClose": 56.0, "trends": []}}
+        if url == TRENDS_URL and params.get("ndays") == "5":
+            return {"data": {"code": "601318", "name": "中国平安", "preClose": 56.0, "trends": []}}
+        if url == HIS_TRENDS_URL:
+            return {
+                "data": {
+                    "code": "601318",
+                    "name": "中国平安",
+                    "preClose": 55.8,
+                    "trends": [
+                        "2026-09-07 09:30,55.80,55.90,56.00,55.70,100,5580.00,55.900",
+                        "2026-09-07 15:00,56.10,56.20,56.30,56.00,200,11240.00,56.150",
+                        "2026-09-08 09:30,0,0,0,0,0,0.00,0",
+                    ],
+                }
+            }
+        raise ChartDataError("unexpected url")
+
+
+class ChartLookbackTests(unittest.TestCase):
+    def setUp(self) -> None:
+        EastmoneyChartClient._cache.clear()
+        self.client = LookbackChartClient()
+
+    def test_empty_today_falls_back_to_latest_available_session(self):
+        payload = self.client.stock_intraday("601318")
+        urls = [url for url, _ in self.client.requests]
+        self.assertEqual(urls[0], TRENDS_URL)
+        self.assertEqual(self.client.requests[0][1]["ndays"], "1")
+        self.assertEqual(urls[1], TRENDS_URL)
+        self.assertEqual(self.client.requests[1][1]["ndays"], "5")
+        self.assertEqual(urls[2], HIS_TRENDS_URL)
+        self.assertEqual(payload["trade_date"], "2026-09-07")
+        self.assertEqual([point["time"] for point in payload["points"]], ["09:30", "15:00"])
+        self.assertEqual(payload["points"][0]["close"], 55.9)
+
+    def test_delay_multiday_can_recover_without_his(self):
+        class DelayFive(EastmoneyChartClient):
+            def __init__(self):
+                super().__init__(cache_ttl_seconds=20)
+                self.requests = []
+
+            def _request_json(self, url, params, referer):
+                self.requests.append((url, params))
+                if params.get("ndays") == "1":
+                    return {"data": {"code": "000001", "name": "平安银行", "preClose": 11.7, "trends": []}}
+                return {
+                    "data": {
+                        "code": "000001",
+                        "name": "平安银行",
+                        "preClose": 11.5,
+                        "trends": [
+                            "2026-09-07 09:30,11.50,11.60,11.70,11.40,100,1160.00,11.600",
+                            "2026-09-07 15:00,11.70,11.80,11.90,11.60,200,2360.00,11.750",
+                        ],
+                    }
+                }
+
+        EastmoneyChartClient._cache.clear()
+        client = DelayFive()
+        payload = client.stock_intraday("000001")
+        self.assertEqual(payload["trade_date"], "2026-09-07")
+        self.assertEqual(len(payload["points"]), 2)
+        self.assertEqual([url for url, _ in client.requests], [TRENDS_URL, TRENDS_URL])
+
+    def test_sh_sz_cyb_codes_use_correct_secid(self):
+        for code, secid in (("601318", "1.601318"), ("000001", "0.000001"), ("300750", "0.300750")):
+            EastmoneyChartClient._cache.clear()
+            client = LookbackChartClient()
+            client.stock_intraday(code)
+            self.assertEqual(client.requests[0][1]["secid"], secid)
+
+
+class FakeHub:
+    def __init__(self, chart=None, error=None):
+        self.chart = chart
+        self.error = error
+        self.calls: list[str] = []
+
+    def try_intraday(self, code):
+        self.calls.append(code)
+        if self.error:
+            raise self.error
+        return self.chart
+
+
+class DatahubChartFallbackTests(unittest.TestCase):
+    def setUp(self) -> None:
+        EastmoneyChartClient._cache.clear()
+
+    def test_datahub_success_skips_old_channel(self):
+        hub = FakeHub(
+            {
+                "entity_type": "stock",
+                "identifier": "601318",
+                "name": "中国平安",
+                "code": "601318",
+                "trade_date": "2026-09-08",
+                "previous_close": 56.36,
+                "points": [{"date": "2026-09-08", "time": "09:30", "close": 56.5, "average": 56.4}],
+                "source": "datahub",
+            }
+        )
+        fallback = LookbackChartClient()
+        client = MarketChartClient(IfindHttpClient(), fallback, hub)
+        payload = client.stock_intraday("601318")
+        self.assertEqual(payload["source"], "datahub")
+        self.assertEqual(hub.calls, ["601318"])
+        self.assertEqual(fallback.requests, [])
+
+    def test_datahub_timeout_or_empty_falls_back_to_eastmoney(self):
+        fallback = LookbackChartClient()
+        for hub in (
+            FakeHub(chart=None),
+            FakeHub(error=RuntimeError("timeout")),
+            FakeHub(error=RuntimeError("datahub exploded")),
+            FakeHub(chart={"points": []}),
+        ):
+            EastmoneyChartClient._cache.clear()
+            fallback.requests.clear()
+            client = MarketChartClient(IfindHttpClient(), fallback, hub)
+            payload = client.stock_intraday("000001")
+            self.assertEqual(payload["trade_date"], "2026-09-07")
+            self.assertGreaterEqual(len(payload["points"]), 1)
+            self.assertTrue(fallback.requests)
+
+
 class ChartServiceStub:
     @staticmethod
     def _payload(code: str, name: str):

tests/test_datahub_bridge.py

@@ -64,9 +64,11 @@ class FakeClient(DatahubClient):
             meta={"tier": "official", "trade_date": "20240902", "stale": False, "staleness_seconds": 0},
         )
         self.paths: list[str] = []
+        self.calls: list[tuple[str, dict[str, Any]]] = []
 
     def get(self, path: str, params: dict[str, Any] | None = None) -> DatahubResponse:
         self.paths.append(path)
+        self.calls.append((path, {key: value for key, value in (params or {}).items()}))
         if TOKEN in json.dumps(params or {}) or TOKEN in path:
             raise AssertionError("token leaked into url")
         if self.error:
@@ -349,6 +351,69 @@ class DatahubBridgeTests(unittest.TestCase):
         self.assertEqual(rows[0]["amount"], 2000.0)
         self.assertEqual(len(legacy.calls), 1)
 
+    def test_try_intraday_respects_switch_and_falls_back_on_bad_payload(self) -> None:
+        closed = DatahubBridge(flags(), FakeClient(error=DatahubError("INTERNAL", "should not run")))
+        self.assertIsNone(closed.try_intraday("601318"))
+
+        empty = DatahubBridge(
+            flags(intraday=(True, False)),
+            FakeClient(response=DatahubResponse(data={"points": []}, meta={"stale": False})),
+        )
+        self.assertIsNone(empty.try_intraday("601318"))
+
+        stale = DatahubBridge(
+            flags(intraday=(True, False)),
+            FakeClient(response=DatahubResponse(
+                data={
+                    "entity_type": "stock",
+                    "code": "601318",
+                    "trade_date": "2026-09-07",
+                    "previous_close": 55.8,
+                    "points": [{"date": "2026-09-07", "time": "09:30", "close": 55.9, "avg_price": 55.85}],
+                },
+                meta={"stale": True},
+            )),
+        )
+        self.assertIsNone(stale.try_intraday("601318"))
+
+        ok = DatahubBridge(
+            flags(intraday=(True, False)),
+            FakeClient(response=DatahubResponse(
+                data={
+                    "entity_type": "stock",
+                    "identifier": "601318",
+                    "name": "中国平安",
+                    "code": "601318",
+                    "trade_date": "2026-09-08",
+                    "previous_close": 56.36,
+                    "points": [
+                        {"date": "2026-09-08", "time": "09:30", "close": 0},
+                        {"date": "2026-09-08", "time": "09:31", "close": 56.5, "avg_price": 56.4},
+                    ],
+                },
+                meta={"stale": False},
+            )),
+        )
+        chart = ok.try_intraday("601318")
+        self.assertEqual(chart["source"], "datahub")
+        self.assertEqual(len(chart["points"]), 1)
+        self.assertEqual(chart["points"][0]["average"], 56.4)
+        self.assertEqual(ok.client.paths, ["/v1/intraday/points"])
+        self.assertEqual(ok.client.calls, [("/v1/intraday/points", {"code": "601318"})])
+        self.assertNotIn("date", ok.client.calls[0][1])
+
+        timeout = DatahubBridge(
+            flags(intraday=(True, False)),
+            FakeClient(error=DatahubError("TIMEOUT", "datahub request timed out")),
+        )
+        self.assertIsNone(timeout.try_intraday("601318"))
+        broken = DatahubBridge(
+            flags(intraday=(True, False)),
+            FakeClient(error=DatahubError("INTERNAL", "datahub exploded")),
+        )
+        self.assertIsNone(broken.try_intraday("601318"))
+        self.assertFalse(DatahubSettings.load(environ={}, credentials={}).flags("intraday").read)
+
     def test_features_do_not_import_datahub_client(self) -> None:
         violations = []
         for path in (ROOT / "backend" / "features").rglob("*.py"):

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

@@ -1,8 +1,16 @@
 from __future__ import annotations
 
 import unittest
+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):
@@ -81,6 +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()
@@ -130,6 +197,173 @@ class RealtimeDashboardTests(unittest.TestCase):
         self.assertEqual(dashboard["meta"]["limit_data_source"], "derived")
         self.assertIn("日线数据推算", dashboard["meta"]["notice"])
 
+    def test_calendar_open_flag_accepts_string_and_bool(self):
+        self.assertTrue(calendar_is_open(1))
+        self.assertTrue(calendar_is_open("1"))
+        self.assertTrue(calendar_is_open(True))
+        self.assertFalse(calendar_is_open(0))
+        self.assertFalse(calendar_is_open("0"))
+        self.assertFalse(calendar_is_open(False))
+
+        original_query = self.client.query
+
+        def query(api_name, params=None, fields=""):
+            if api_name == "trade_cal":
+                return [
+                    {
+                        "cal_date": params.get("start_date"),
+                        "is_open": "1",
+                        "pretrade_date": "20260907",
+                    }
+                ]
+            return original_query(api_name, params, fields)
+
+        self.client.query = query
+        trade_date, previous = self.client.resolve_trade_context("20260908")
+        self.assertEqual(trade_date, "20260908")
+        self.assertEqual(previous, "20260907")
+
+    def test_session_clock_uses_realtime_until_official_window(self):
+        today = "20260908"
+        self.client.clock = lambda: datetime(
+            2026, 9, 8, 10, 5, tzinfo=timezone(timedelta(hours=8))
+        )
+        self.assertTrue(self.client.should_use_realtime(today, today))
+        self.client.clock = lambda: datetime(
+            2026, 9, 8, 16, 10, tzinfo=timezone(timedelta(hours=8))
+        )
+        self.assertFalse(self.client.should_use_realtime(today, today))
+
+    def test_realtime_dashboard_survives_missing_limit_table(self):
+        original_query = self.client.query
+
+        def query(api_name, params=None, fields=""):
+            if api_name == "stk_limit":
+                return []
+            return original_query(api_name, params, fields)
+
+        self.client.query = query
+        TushareClient._realtime_reference_cache.clear()
+        dashboard = self.client._realtime_dashboard("20260720", "20260720", "20260717")
+        self.assertTrue(dashboard["meta"]["realtime"])
+        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"},

xiaobai-datahub/datahub/adapters/eastmoney.py

@@ -14,6 +14,7 @@ from datahub.numbers import finite_number, round4
 EASTMONEY_INDEX_URL = "https://push2.eastmoney.com/api/qt/ulist.np/get"
 EASTMONEY_CLIST_URL = "https://push2.eastmoney.com/api/qt/clist/get"
 TRENDS_URL = "https://push2delay.eastmoney.com/api/qt/stock/trends2/get"
+HIS_TRENDS_URL = "https://push2his.eastmoney.com/api/qt/stock/trends2/get"
 BROWSER_UA = (
     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
     "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36"
@@ -166,7 +167,7 @@ class EastmoneyAdapter(MarketAdapter):
             )
         return result
 
-    def fetch_intraday(self, ts_code: str) -> dict[str, Any]:
+    def fetch_intraday(self, ts_code: str, date: str = "") -> dict[str, Any]:
         code = str(ts_code or "").upper()
         if code in INDEX_SECIDS:
             secid = INDEX_SECIDS[code]
@@ -178,25 +179,32 @@ class EastmoneyAdapter(MarketAdapter):
             secid = f"{market}.{symbol}"
             entity = "stock"
             identifier = symbol
-        payload = self._get_json(
-            TRENDS_URL,
-            {
+        params = {
             "secid": secid,
             "fields1": "f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13",
             "fields2": "f51,f52,f53,f54,f55,f56,f57,f58",
             "iscr": "0",
-                "ndays": "1",
-            },
+        }
+        data: dict[str, Any] = {}
+        points: list[dict[str, Any]] = []
+        last_error: Exception | None = None
+        for url, ndays in ((TRENDS_URL, "1"), (TRENDS_URL, "5"), (HIS_TRENDS_URL, "5")):
+            try:
+                payload = self._get_json(
+                    url,
+                    {**params, "ndays": ndays},
                     referer="https://quote.eastmoney.com/",
                 )
+            except AdapterError as exc:
+                last_error = exc
+                continue
             data = payload.get("data") or {}
-        points = []
-        for raw in data.get("trends") or []:
-            point = _parse_trend(raw)
-            if point:
-                points.append(point)
+            parsed = [point for raw in data.get("trends") or [] if (point := _parse_trend(raw))]
+            points = _preferred_session(parsed, date)
+            if points:
+                break
         if not points:
-            raise AdapterError("No intraday chart data returned")
+            raise AdapterError("No intraday chart data returned") from last_error
         return {
             "entity_type": entity,
             "identifier": identifier,
@@ -227,6 +235,23 @@ class EastmoneyAdapter(MarketAdapter):
             raise AdapterError(f"eastmoney request failed: {exc}") from exc
 
 
+def _preferred_session(points: list[dict[str, Any]], preferred_date: str = "") -> list[dict[str, Any]]:
+    if not points:
+        return []
+    want = ""
+    digits = str(preferred_date or "").replace("-", "")[:8]
+    if len(digits) == 8 and digits.isdigit():
+        want = f"{digits[:4]}-{digits[4:6]}-{digits[6:8]}"
+    if want:
+        matched = [point for point in points if str(point.get("date") or "") == want]
+        if matched:
+            return matched
+    latest = max(str(point.get("date") or "") for point in points)
+    if not latest:
+        return points
+    return [point for point in points if str(point.get("date") or "") == latest]
+
+
 def _parse_trend(raw: Any) -> dict[str, Any] | None:
     text = str(raw or "")
     parts = text.split(",")
@@ -237,11 +262,14 @@ def _parse_trend(raw: Any) -> dict[str, Any] | None:
         when = datetime.strptime(stamp, "%Y-%m-%d %H:%M")
     except ValueError:
         return None
+    close = round4(finite_number(parts[2]))
+    if close <= 0:
+        return None
     return {
         "time": when.strftime("%H:%M"),
         "date": when.strftime("%Y-%m-%d"),
         "open": round4(finite_number(parts[1])),
-        "close": round4(finite_number(parts[2])),
+        "close": close,
         "high": round4(finite_number(parts[3])),
         "low": round4(finite_number(parts[4])),
         "avg_price": round4(finite_number(parts[7] if len(parts) > 7 else parts[2])),

xiaobai-datahub/datahub/realtime_serve.py

@@ -14,6 +14,7 @@ from datahub.adapters.eastmoney import EastmoneyAdapter
 from datahub.adapters.tencent import TencentAdapter
 from datahub.codes import resolve_code
 from datahub.db import HubDB
+from datahub.governance.lkg import LastKnownGood
 from datahub.timeutil import isoformat, now_shanghai, yyyymmdd
 
 QUOTE_TTL = 60
@@ -108,10 +109,13 @@ def fetch_intraday(db: HubDB, code: str, date: str = "") -> dict[str, Any]:
         return cached
     adapter = EastmoneyAdapter()
     try:
-        payload_data = adapter.fetch_intraday(ts_code)
+        payload_data = adapter.fetch_intraday(ts_code, date)
         source = "eastmoney:trends2"
     except Exception as exc:
+        recovered = _load_intraday_lkg(db, ts_code, date)
+        if recovered is None:
             raise RealtimeApiError("SOURCE_UNAVAILABLE", f"intraday unavailable: {exc}") from exc
+        return recovered
     payload = _envelope(
         payload_data,
         {
@@ -127,6 +131,47 @@ def fetch_intraday(db: HubDB, code: str, date: str = "") -> dict[str, Any]:
     return payload
 
 
+def _load_intraday_lkg(db: HubDB, ts_code: str, date: str = "") -> dict[str, Any] | None:
+    store = LastKnownGood(db)
+    keys = [f"intraday:{ts_code}:{date or 'today'}"]
+    if date:
+        keys.append(f"intraday:{ts_code}:today")
+    for key in keys:
+        item = store.load(key)
+        payload = _lkg_payload(item)
+        if payload is not None:
+            return payload
+    row = db.fetchone(
+        "SELECT * FROM last_known_good WHERE cache_key LIKE ? ORDER BY stored_at DESC LIMIT 1",
+        (f"intraday:{ts_code}:%",),
+    )
+    if not row:
+        return None
+    try:
+        raw = json.loads(row["payload"])
+    except json.JSONDecodeError:
+        return None
+    return _mark_stale(raw) if isinstance(raw, dict) else None
+
+
+def _lkg_payload(item: dict[str, Any] | None) -> dict[str, Any] | None:
+    if not item:
+        return None
+    payload = item.get("payload")
+    return _mark_stale(payload) if isinstance(payload, dict) else None
+
+
+def _mark_stale(payload: dict[str, Any]) -> dict[str, Any] | None:
+    data = payload.get("data")
+    if not isinstance(data, dict) or not data.get("points"):
+        return None
+    stamped = dict(payload)
+    meta = dict(stamped.get("meta") or {})
+    meta["stale"] = True
+    stamped["meta"] = meta
+    return stamped
+
+
 def _guess_ts_code(code: str) -> str | None:
     raw = str(code or "").strip().upper()
     if "." in raw:

xiaobai-datahub/datahub/serving.py

@@ -269,8 +269,13 @@ class V1API:
         code = str(q.get("code") or "").strip()
         if not code:
             raise ApiError("INVALID_ARGUMENT", "code is required")
+        raw_date = str(q.get("date") or "").strip()
         try:
-            return fetch_intraday(self.db, code, yyyymmdd(q.get("date") or ""))
+            trade_date = yyyymmdd(raw_date or now_shanghai())
+        except ValueError as exc:
+            raise ApiError("INVALID_ARGUMENT", str(exc)) from exc
+        try:
+            return fetch_intraday(self.db, code, trade_date)
         except RealtimeApiError as exc:
             raise ApiError(exc.code, exc.message) from exc
 

xiaobai-datahub/tests/test_realtime_intraday.py

@@ -0,0 +1,176 @@
+from __future__ import annotations
+
+import tempfile
+import unittest
+from pathlib import Path
+from unittest.mock import patch
+
+from datahub.adapters.base import AdapterError
+from datahub.adapters.eastmoney import HIS_TRENDS_URL, TRENDS_URL, EastmoneyAdapter
+from datahub.db import HubDB
+from datahub.realtime_serve import fetch_intraday
+from datahub.serving import ApiError, V1API
+from datahub.timeutil import now_shanghai, yyyymmdd
+
+
+class FakeEastmoney(EastmoneyAdapter):
+    def __init__(self) -> None:
+        super().__init__(timeout=2)
+        self.urls: list[str] = []
+
+    def _get_json(self, url, params, referer):
+        self.urls.append(f"{url}|{params.get('ndays')}")
+        if url == TRENDS_URL:
+            return {"data": {"name": "中国平安", "code": "601318", "preClose": 56.36, "trends": []}}
+        if url == HIS_TRENDS_URL:
+            return {
+                "data": {
+                    "name": "中国平安",
+                    "code": "601318",
+                    "preClose": 55.8,
+                    "trends": [
+                        "2026-09-07 09:30,55.80,55.90,56.00,55.70,100,5580.00,55.900",
+                        "2026-09-07 15:00,56.10,56.20,56.30,56.00,200,11240.00,56.150",
+                        "2026-09-08 09:30,0,0,0,0,0,0.00,0",
+                    ],
+                }
+            }
+        raise AdapterError(f"unexpected url {url}")
+
+
+class EastmoneyIntradayLookbackTests(unittest.TestCase):
+    def test_empty_today_uses_latest_available_session(self):
+        adapter = FakeEastmoney()
+        payload = adapter.fetch_intraday("601318.SH")
+        self.assertEqual(adapter.urls, [f"{TRENDS_URL}|1", f"{TRENDS_URL}|5", f"{HIS_TRENDS_URL}|5"])
+        self.assertEqual(payload["trade_date"], "2026-09-07")
+        self.assertEqual([point["time"] for point in payload["points"]], ["09:30", "15:00"])
+        self.assertEqual(payload["points"][0]["close"], 55.9)
+
+    def test_preferred_date_keeps_that_session(self):
+        adapter = FakeEastmoney()
+        payload = adapter.fetch_intraday("601318.SH", "20260907")
+        self.assertEqual(payload["trade_date"], "2026-09-07")
+        self.assertEqual(len(payload["points"]), 2)
+
+
+class IntradayLkgTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.tmp = tempfile.TemporaryDirectory()
+        self.db = HubDB(Path(self.tmp.name) / "hub.db")
+
+    def tearDown(self) -> None:
+        self.tmp.cleanup()
+
+    def test_source_failure_returns_last_known_good(self):
+        from datahub.realtime_serve import _envelope, _write_cache
+
+        payload = _envelope(
+            {
+                "entity_type": "stock",
+                "ts_code": "601318.SH",
+                "trade_date": "2026-09-07",
+                "previous_close": 55.8,
+                "points": [{"date": "2026-09-07", "time": "09:30", "close": 55.9}],
+            },
+            {
+                "tier": "provisional",
+                "trade_date": "20260907",
+                "source": "eastmoney:trends2",
+                "stale": False,
+            },
+        )
+        _write_cache(self.db, "intraday:601318.SH:today", payload, 20, "eastmoney:trends2")
+        self.db.execute(
+            "UPDATE rt_cache SET expires_at = ? WHERE cache_key = ?",
+            ("2000-01-01T00:00:00+08:00", "intraday:601318.SH:today"),
+        )
+
+        with patch("datahub.realtime_serve.EastmoneyAdapter") as mocked:
+            mocked.return_value.fetch_intraday.side_effect = AdapterError("down")
+            recovered = fetch_intraday(self.db, "601318.SH")
+        self.assertTrue(recovered["meta"]["stale"])
+        self.assertEqual(recovered["data"]["points"][0]["close"], 55.9)
+
+    def test_source_failure_without_lkg_raises(self):
+        with patch("datahub.realtime_serve.EastmoneyAdapter") as mocked:
+            mocked.return_value.fetch_intraday.side_effect = AdapterError("down")
+            with self.assertRaises(Exception) as ctx:
+                fetch_intraday(self.db, "000001.SZ")
+        self.assertIn("intraday unavailable", str(ctx.exception))
+
+
+class ServingIntradayDateTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.tmp = tempfile.TemporaryDirectory()
+        self.db = HubDB(Path(self.tmp.name) / "hub.db")
+        self.api = V1API(self.db, pipeline=None, settings=None)
+
+    def tearDown(self) -> None:
+        self.tmp.cleanup()
+
+    def _assert_usable_intraday(self, payload: dict) -> None:
+        data = payload["data"]
+        points = [point for point in data.get("points") or [] if float(point.get("close") or 0) > 0]
+        self.assertGreaterEqual(len(points), 1)
+        self.assertTrue(str(data.get("trade_date") or ""))
+        self.assertFalse((payload.get("meta") or {}).get("stale"))
+
+    def test_serving_omitted_or_empty_date_uses_today_and_returns_points(self) -> None:
+        today = yyyymmdd(now_shanghai())
+        omitted = self.api.handle("/v1/intraday/points", {"code": ["601318"]})
+        empty = self.api.handle("/v1/intraday/points", {"code": ["601318"], "date": [""]})
+        explicit = self.api.handle("/v1/intraday/points", {"code": ["601318"], "date": [today]})
+        self._assert_usable_intraday(omitted)
+        self._assert_usable_intraday(empty)
+        self._assert_usable_intraday(explicit)
+        self.assertEqual(omitted["data"]["trade_date"], empty["data"]["trade_date"])
+        self.assertEqual(explicit["data"]["trade_date"], omitted["data"]["trade_date"])
+
+    def test_serving_normalizes_empty_date_to_today_and_keeps_history(self) -> None:
+        today = yyyymmdd(now_shanghai())
+        captured: list[str] = []
+
+        def fake_fetch(db, code, date=""):
+            captured.append(date)
+            return {
+                "schema_version": 1,
+                "data": {
+                    "trade_date": f"{date[:4]}-{date[4:6]}-{date[6:8]}",
+                    "points": [{"date": f"{date[:4]}-{date[4:6]}-{date[6:8]}", "time": "09:30", "close": 55.9}],
+                },
+                "meta": {"stale": False, "trade_date": date},
+            }
+
+        with patch("datahub.realtime_serve.fetch_intraday", side_effect=fake_fetch):
+            omitted = self.api.handle("/v1/intraday/points", {"code": ["601318"]})
+            empty = self.api.handle("/v1/intraday/points", {"code": ["601318"], "date": ["  "]})
+            history = self.api.handle("/v1/intraday/points", {"code": ["601318"], "date": ["20260907"]})
+        self.assertEqual(captured, [today, today, "20260907"])
+        self.assertEqual(omitted["data"]["trade_date"], f"{today[:4]}-{today[4:6]}-{today[6:8]}")
+        self.assertEqual(empty["data"]["trade_date"], omitted["data"]["trade_date"])
+        self.assertEqual(history["data"]["trade_date"], "2026-09-07")
+
+    def test_serving_invalid_date_is_invalid_argument(self) -> None:
+        with self.assertRaises(ApiError) as ctx:
+            self.api.handle("/v1/intraday/points", {"code": ["601318"], "date": ["not-a-date"]})
+        self.assertEqual(ctx.exception.code, "INVALID_ARGUMENT")
+        self.assertIn("invalid trade_date", ctx.exception.message)
+
+    def test_serving_missing_code_is_invalid_argument(self) -> None:
+        with self.assertRaises(ApiError) as ctx:
+            self.api.handle("/v1/intraday/points", {"date": [yyyymmdd(now_shanghai())]})
+        self.assertEqual(ctx.exception.code, "INVALID_ARGUMENT")
+        self.assertIn("code is required", ctx.exception.message)
+
+    def test_serving_no_data_keeps_source_unavailable(self) -> None:
+        with patch("datahub.realtime_serve.EastmoneyAdapter") as mocked:
+            mocked.return_value.fetch_intraday.side_effect = AdapterError("No intraday chart data returned")
+            with self.assertRaises(ApiError) as ctx:
+                self.api.handle("/v1/intraday/points", {"code": ["000001"]})
+        self.assertEqual(ctx.exception.code, "SOURCE_UNAVAILABLE")
+        self.assertIn("intraday unavailable", ctx.exception.message)
+
+
+if __name__ == "__main__":
+    unittest.main()