feat: daily volume top20 rank per exchange in market page

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

crypto_monitor_okx/app.py

@@ -7857,6 +7857,16 @@ def _hub_fetch_ohlcv(symbol, timeframe, since_ms=None, limit=500):
     )
 
 
+def _hub_fetch_volume_rank(top_n=20):
+    from hub_volume_rank_lib import fetch_usdt_swap_volume_rank
+
+    return fetch_usdt_swap_volume_rank(
+        exchange=exchange,
+        ensure_markets_loaded=ensure_markets_loaded,
+        top_n=top_n,
+    )
+
+
 try:
     import sys
     from pathlib import Path
@@ -7877,6 +7887,7 @@ try:
         account_fn=_hub_account_bundle,
         views={"add_order": add_order, "add_key": add_key},
         ohlcv_fn=_hub_fetch_ohlcv,
+        volume_rank_fn=_hub_fetch_volume_rank,
     )
 except Exception as _hub_err:
     print(f"[hub_bridge] okx: {_hub_err}")