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

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

frontend/src/pages/Trades.tsx

@@ -1,5 +1,11 @@
 import { useEffect, useState } from "react";
 import { apiFetch } from "../api/client";
+import {
+  closeReasonZh,
+  fillDescZh,
+  positionSidesZh,
+  statusZh,
+} from "../labels";
 
 type Group = {
   group_id: string;
@@ -62,10 +68,12 @@ export default function TradesPage() {
               onClick={() => openGroup(g.group_id)}
             >
               <span className="mono">
-                {g.group_id} · {g.status} · {g.perp_side}/{g.option_side}
+                {g.group_id} · {statusZh(g.status)} ·{" "}
+                {positionSidesZh(g.perp_side, g.option_side)}
               </span>
               <span className="mono">
-                PnL {Number(g.realized_pnl || 0).toFixed(2)} · {g.close_reason || "—"}
+                盈亏 {Number(g.realized_pnl || 0).toFixed(2)} ·{" "}
+                {closeReasonZh(g.close_reason)}
               </span>
             </div>
           ))
@@ -77,10 +85,11 @@ export default function TradesPage() {
           {fills.map((f) => (
             <div key={f.id} className="kv">
               <span className="mono">
-                {f.leg} {f.action} {f.side}
+                {fillDescZh(f.leg, f.action, f.side)}
               </span>
               <span className="mono">
-                px {f.fill_px.toFixed(4)} · qty {f.qty_eth} · fee {f.fee.toFixed(4)}
+                价 {f.fill_px.toFixed(4)} · 数量 {f.qty_eth} · 手续费{" "}
+                {f.fee.toFixed(4)}
               </span>
             </div>
           ))}