feat: daily volume top20 rank per exchange in market page

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

hub_bridge.py

@@ -206,6 +206,7 @@ def install_on_app(
     views: dict,
     ohlcv_fn=None,
     account_fn=None,
+    volume_rank_fn=None,
 ):
     app.config["HUB_CTX"] = {
         "exchange": exchange,
@@ -217,6 +218,7 @@ def install_on_app(
         "account_fn": account_fn,
         "views": views,
         "ohlcv_fn": ohlcv_fn,
+        "volume_rank_fn": volume_rank_fn,
     }
     install_hub_embed_headers(app)
     configure_hub_embed_session(app)
@@ -507,6 +509,24 @@ def register_hub_routes(app):
             }
         )
 
+    @app.route("/api/hub/volume-rank")
+    @_hub_auth_required
+    def api_hub_volume_rank():
+        fn = _ctx().get("volume_rank_fn")
+        if not callable(fn):
+            return jsonify({"ok": False, "msg": "该实例未配置成交量排名接口"}), 501
+        top_raw = (request.args.get("top") or "").strip()
+        top_n = 20
+        if top_raw.isdigit():
+            top_n = int(top_raw)
+        try:
+            result = fn(top_n=top_n)
+            if isinstance(result, dict):
+                return jsonify(result)
+            return jsonify({"ok": False, "msg": "成交量排名返回格式无效"}), 500
+        except Exception as e:
+            return jsonify({"ok": False, "msg": str(e)}), 500
+
     @app.route("/api/hub/ohlcv")
     @_hub_auth_required
     def api_hub_ohlcv():