ui: 手续费/设置布局优化，行情优先 CTP

手续费数据源与本地倍率并列双列；设置页去掉参考资金、缩小改密表单；CTP 连接时订阅柜台 tick 作为行情源。

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

app.py

@@ -428,7 +428,7 @@ def build_market_quote_payload(
         if codes:
             market_code = codes.get("market_code", "") or market_code
             sina_code = codes.get("sina_code", "") or sina_code
-    price = market_get_price(market_code, sina_code)
+    price = fetch_price(symbol, market_code, sina_code)
     name = symbol
     codes = ths_to_codes(symbol)
     if codes:
@@ -477,7 +477,20 @@ def resolve_market_codes(ths_code: str, market_code: str = "", sina_code: str =
 
 
 def fetch_price(ths_code: str, market_code: str = "", sina_code: str = "") -> Optional[float]:
-    mc, sc = resolve_market_codes(ths_code, market_code, sina_code)
+    sym = (ths_code or "").strip()
+    if sym:
+        try:
+            from vnpy_bridge import ctp_status, ctp_get_tick_price
+            from trading_context import get_trading_mode
+
+            mode = get_trading_mode(get_setting)
+            if ctp_status(mode).get("connected"):
+                p = ctp_get_tick_price(mode, sym)
+                if p and p > 0:
+                    return p
+        except Exception:
+            pass
+    mc, sc = resolve_market_codes(sym, market_code, sina_code)
     if not mc and not sc:
         return None
     return market_get_price(mc, sc)
@@ -1578,17 +1591,6 @@ def settings():
             webhook = request.form.get("wechat_webhook", "").strip()
             set_setting("wechat_webhook", webhook)
             flash("企业微信配置已保存")
-        elif action == "capital":
-            raw = request.form.get("live_capital", "").strip()
-            try:
-                val = float(raw)
-                if val < 0:
-                    flash("实盘资金不能为负数")
-                else:
-                    set_setting("live_capital", str(val))
-                    flash("参考资金已保存（CTP 已连接时以 SimNow/柜台权益为准）")
-            except ValueError:
-                flash("请输入有效的实盘资金金额")
         elif action == "trading":
             mode = request.form.get("trading_mode", "simulation").strip()
             if mode not in ("simulation", "live"):
@@ -1627,13 +1629,19 @@ def settings():
 
     webhook = get_setting("wechat_webhook")
     username = get_setting("admin_username")
-    live_capital = get_setting("live_capital", "0")
+    ctp_st = {}
+    try:
+        from vnpy_bridge import ctp_status
+        from trading_context import get_trading_mode
+
+        ctp_st = ctp_status(get_trading_mode(get_setting))
+    except Exception:
+        pass
     return render_template(
         "settings.html",
         webhook=webhook,
         username=username,
-        live_capital=live_capital,
-        quote_label=get_quote_source_label(),
+        quote_label=get_quote_source_label(ctp_connected=bool(ctp_st.get("connected"))),
         trading_mode=get_setting("trading_mode", "simulation"),
         position_sizing_mode=get_setting("position_sizing_mode", "risk"),
         risk_percent=get_setting("risk_percent", "1"),