中控行情区与 K 线本地库（15 天滚动、按需拉取）

新增行情区单图与周期切换，K 线优先读 hub_kline.db，不足时经各实例 /api/hub/ohlcv 补齐；无后台定时更新。含回滚标签说明与单元测试。

Co-authored-by: Cursor <cursoragent@cursor.com>

crypto_monitor_gate/app.py

@@ -8127,6 +8127,22 @@ def _hub_meta_bundle():
     }
 
 
+def _hub_fetch_ohlcv(symbol, timeframe, since_ms=None, limit=500):
+    from hub_ohlcv_lib import fetch_ohlcv_for_hub
+
+    return fetch_ohlcv_for_hub(
+        symbol=symbol,
+        timeframe=timeframe,
+        since_ms=since_ms,
+        limit=limit,
+        normalize_symbol_input=normalize_symbol_input,
+        normalize_exchange_symbol=normalize_exchange_symbol,
+        ensure_markets_loaded=ensure_markets_loaded,
+        exchange=exchange,
+        friendly_error=friendly_exchange_error,
+    )
+
+
 try:
     import sys
     from pathlib import Path
@@ -8145,6 +8161,7 @@ try:
         row_to_dict=row_to_dict,
         meta_fn=_hub_meta_bundle,
         views={"add_order": add_order, "add_key": add_key},
+        ohlcv_fn=_hub_fetch_ohlcv,
     )
 except Exception as _hub_err:
     print(f"[hub_bridge] gate: {_hub_err}")