Support LIVE exchange funds and perp margin mode.

Hide sim equity when LIVE is selected; OKX funds bar uses exchange balances; add cross/isolated for perp only (options stay cash).

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

frontend/src/pages/Settings.tsx

@@ -71,6 +71,9 @@ export default function SettingsPage() {
   const [orderInterval, setOrderInterval] = useState(1);
   const [skipWeekends, setSkipWeekends] = useState(true);
   const [leverage, setLeverage] = useState(3);
+  const [perpMarginMode, setPerpMarginMode] = useState<"cross" | "isolated">(
+    "cross",
+  );
   const [minHours, setMinHours] = useState(12);
   const [minOptLev, setMinOptLev] = useState(100);
   const [atmOffOn, setAtmOffOn] = useState(false);
@@ -157,6 +160,9 @@ export default function SettingsPage() {
         setOrderInterval(s.live_order_interval_sec ?? 1);
         setSkipWeekends(s.skip_weekends !== false);
         setLeverage(s.leverage ?? 3);
+        setPerpMarginMode(
+          s.perp_margin_mode === "isolated" ? "isolated" : "cross",
+        );
         setMinHours(s.min_option_hours ?? 12);
         setMinOptLev(s.min_option_leverage ?? 100);
         setAtmOffOn(s.atm_open_offset_enabled === true);
@@ -292,7 +298,7 @@ export default function SettingsPage() {
     e.preventDefault();
     setStratOk("");
     setErr("");
-    const isLive = (runtime?.mode ?? mode) === "LIVE";
+    const isLive = mode === "LIVE";
     try {
       const body: Record<string, unknown> = {
         fee_rate: fee,
@@ -303,6 +309,7 @@ export default function SettingsPage() {
         live_order_interval_sec: orderInterval,
         skip_weekends: skipWeekends,
         leverage,
+        perp_margin_mode: perpMarginMode,
         min_option_hours: minHours,
         min_option_leverage: minOptLev,
         atm_open_offset_enabled: atmOffOn,
@@ -375,6 +382,7 @@ export default function SettingsPage() {
             : `已切 LIVE，但未就绪：${r.live_ready_reason}`
           : "已切换 SIM，配置已写入 .env",
       );
+      window.dispatchEvent(new Event("funds-refresh"));
     } catch (ex) {
       setErr(ex instanceof Error ? ex.message : String(ex));
     } finally {
@@ -531,7 +539,7 @@ export default function SettingsPage() {
                       </option>
                     </select>
                   </div>
-                  {(runtime?.mode ?? mode) !== "LIVE" ? (
+                  {mode !== "LIVE" ? (
                     <div className="field">
                       <label htmlFor="equity">模拟资金（USDT）</label>
                       <input
@@ -559,6 +567,22 @@ export default function SettingsPage() {
                       onChange={(e) => setLeverage(Number(e.target.value))}
                     />
                   </div>
+                  <div className="field">
+                    <label htmlFor="perpMm">永续保证金模式</label>
+                    <select
+                      id="perpMm"
+                      className="mono"
+                      value={perpMarginMode}
+                      onChange={(e) =>
+                        setPerpMarginMode(
+                          e.target.value === "isolated" ? "isolated" : "cross",
+                        )
+                      }
+                    >
+                      <option value="cross">全仓（默认）</option>
+                      <option value="isolated">逐仓</option>
+                    </select>
+                  </div>
                   <div className="field">
                     <label htmlFor="perp">永续 ETH 数量</label>
                     <input
@@ -822,19 +846,23 @@ export default function SettingsPage() {
             >
               <ul className="settings-rules-list">
                 <li>
-                  {(runtime?.mode ?? mode) === "LIVE"
+                  {mode === "LIVE"
                     ? "当前 LIVE：仓位/选约/出场影响真下单；模拟资金已隐藏。"
                     : "当前 SIM：本地撮合；可改模拟资金与交易所行情源。"}
                 </li>
                 {stratSub === "position" ? (
                   <>
                     <li>交易所：有持仓时不可切换。切换后套用该所合约并重连行情。</li>
-                    {(runtime?.mode ?? mode) !== "LIVE" ? (
+                    {mode !== "LIVE" ? (
                       <li>
                         模拟资金：仅 SIM 显示。保存后重置权益（须无持仓）。默认
                         10000。
                       </li>
                     ) : null}
+                    <li>
+                      永续保证金模式：仅作用于永续（全仓/逐仓，默认全仓）。OKX
+                      期权始终为现金/逐仓（cash），不受此选项影响。
+                    </li>
                   </>
                 ) : null}
                 {stratSub === "select" ? (
@@ -1168,6 +1196,7 @@ export default function SettingsPage() {
                       }),
                     });
                     setFundsOk("兑换成功，顶部资金条将刷新");
+                    window.dispatchEvent(new Event("funds-refresh"));
                   } catch (e) {
                     setFundsErr(e instanceof Error ? e.message : String(e));
                   } finally {
@@ -1257,6 +1286,7 @@ export default function SettingsPage() {
                         }),
                       });
                       setFundsOk("划转成功，顶部资金条将刷新");
+                      window.dispatchEvent(new Event("funds-refresh"));
                     } catch (e) {
                       setFundsErr(e instanceof Error ? e.message : String(e));
                     } finally {