feat(risk): add account cooldown and daily freeze after manual/external close

Implements shared account_risk_lib with 4h/1h cooloff and daily freeze rules, wires hooks into all four exchange apps and hub monitor UI, with tests and docs.

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

manual_trading_hub/static/app.css

@@ -593,6 +593,36 @@ button:disabled {
   display: flex;
   align-items: center;
   gap: 8px;
+  flex-wrap: wrap;
+}
+
+.risk-status-badge {
+  font-size: 0.72rem;
+  font-weight: 600;
+  padding: 2px 8px;
+  border-radius: 999px;
+  border: 1px solid transparent;
+  white-space: nowrap;
+}
+.risk-status-normal {
+  color: #b8f5d0;
+  background: #14241e;
+  border-color: #2d6a4f;
+}
+.risk-status-freeze_1h {
+  color: #ffd89a;
+  background: #2a2210;
+  border-color: #8a6a20;
+}
+.risk-status-freeze_4h {
+  color: #ffb4a0;
+  background: #2a1410;
+  border-color: #8a4020;
+}
+.risk-status-freeze_daily {
+  color: #ffb0c8;
+  background: #2a1020;
+  border-color: #8a3050;
 }
 
 .status-dot {

manual_trading_hub/static/app.js

@@ -508,6 +508,14 @@
       .replace(/"/g, """);
   }
 
+  function formatRiskStatusBadge(riskStatus) {
+    if (!riskStatus || typeof riskStatus !== "object") return "";
+    const st = riskStatus.status || "normal";
+    const label = esc(riskStatus.status_label || "正常");
+    const title = esc(riskStatus.reason || "");
+    return `<span class="risk-status-badge risk-status-${esc(st)}" title="${title}">${label}</span>`;
+  }
+
   function fmt(n, d) {
     if (n === null || n === undefined || Number.isNaN(Number(n))) return "—";
     return Number(n).toLocaleString(undefined, { maximumFractionDigits: d });
@@ -3240,7 +3248,7 @@
       <div class="hub-tile-body card-expand-zone" title="点击进入全屏详情">
         <div class="hub-tile-top">
           <span class="status-dot ${dotCls}" aria-hidden="true"></span>
-          <span class="hub-tile-name">${esc(row.name)}</span>
+          <span class="hub-tile-name">${esc(row.name)}${formatRiskStatusBadge(hm.risk_status)}</span>
         </div>
         ${
           showAccountPnlPref()
@@ -3293,7 +3301,7 @@
         <div>
           <div class="card-title-row">
             <span class="status-dot ${dotCls}" title="${online ? "在线" : "离线"}"></span>
-            <div class="card-title">${esc(row.name)}</div>
+            <div class="card-title">${esc(row.name)}${formatRiskStatusBadge(hm.risk_status)}</div>
           </div>
           <div class="card-sub">${esc(flaskOpen || "")}</div>
         </div>