Add weekend open skip, expiry force-close, and Chinese trade labels.

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

frontend/src/pages/Stats.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useState } from "react";
 import { apiFetch } from "../api/client";
+import { closeReasonZh } from "../labels";
 
 type Summary = {
   groups: number;
@@ -22,6 +23,10 @@ export default function StatsPage() {
       .catch((e) => setErr(e instanceof Error ? e.message : String(e)));
   }, []);
 
+  const reasonEntries = s
+    ? Object.entries(s.close_reasons).sort((a, b) => b[1] - a[1])
+    : [];
+
   return (
     <div className="card">
       <h2 style={{ marginTop: 0 }}>统计</h2>
@@ -46,9 +51,17 @@ export default function StatsPage() {
               {s.total_fees.toFixed(2)} / {s.total_slip.toFixed(2)}
             </span>
           </div>
-          <div className="kv">
+          <div className="kv" style={{ alignItems: "flex-start" }}>
             <span>平仓原因</span>
-            <span className="mono">{JSON.stringify(s.close_reasons)}</span>
+            <span className="mono" style={{ textAlign: "right" }}>
+              {reasonEntries.length === 0
+                ? "—"
+                : reasonEntries.map(([k, n]) => (
+                    <div key={k}>
+                      {closeReasonZh(k)} × {n}
+                    </div>
+                  ))}
+            </span>
           </div>
           <h3>按组盈亏</h3>
           {s.equity_curve.map((x) => (