Add daily loss force-flatten at configurable equity limit

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

modules/web/static/js/trade.js

@@ -28,6 +28,7 @@
     var lastCtpLoginBanAt = 0;
     var ctpReconnecting = false;
     var ctpConnectInflight = false;
+    var lastRiskStatus = null;
     var isTradingSession = false;
     var hasSlTpMonitoring = false;
     var ctpConnected = false;
@@ -313,6 +314,7 @@
         }
         var riskBadge = document.getElementById('risk-badge');
         if (riskBadge && data.risk_status) {
+            lastRiskStatus = data.risk_status;
             riskBadge.textContent = data.risk_status.status_label || '';
             riskBadge.className = 'badge ' + (data.risk_status.can_trade ? 'profit' : 'loss');
         }
@@ -396,9 +398,13 @@
     function updateSessionUi() {
         var btnOpen = document.getElementById('btn-open');
         var sessionHint = document.getElementById('session-hint');
+        var canTrade = !lastRiskStatus || lastRiskStatus.can_trade !== false;
         if (btnOpen) {
-            btnOpen.disabled = !isTradingSession;
+            var blocked = !isTradingSession || !canTrade;
+            btnOpen.disabled = blocked;
             btnOpen.classList.toggle('btn-session-off', !isTradingSession);
+            btnOpen.classList.toggle('btn-risk-off', isTradingSession && !canTrade);
+            btnOpen.textContent = (isTradingSession && !canTrade) ? '风控' : '开仓';
         }
         if (sessionHint) {
             sessionHint.hidden = !!isTradingSession;