Split OO budget per leg and size Call/Put independently.

Each half of the risk budget buys its own qty from ask; equal qty no longer forced.

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

frontend/src/pages/Plan.tsx

@@ -223,7 +223,7 @@ export default function PlanPage() {
           : `待估算（基数${fmt(plan?.risk_exit_unit ?? 15)}）`
         : `固定 ${fmt(plan?.net_profit_target ?? 15)} U`;
   const riskRatioLabel = isOo
-    ? "Call:Put 1:1"
+    ? "预算平分 Call/Put"
     : `比例${Number(plan?.risk_perp_unit ?? 1)}:${Number(plan?.risk_option_unit ?? 2)}`;
   const sizingModeLabel = riskBased
     ? [
@@ -268,7 +268,16 @@ export default function PlanPage() {
     "虚值Call@高·Put@低",
     `剩余≥${fmt(plan?.oo_min_option_hours ?? 24, 0)}h`,
     `杠杆≥${fmt(plan?.oo_min_leverage ?? 200, 0)}x`,
-    displayOptQty != null ? `单腿${fmt(displayOptQty, 1)}ETH` : null,
+    displayOptQty != null
+      ? `Call${fmt(displayOptQty, 1)}/Put${fmt(
+          Number(
+            plan?.risk_sizing_preview?.put_qty_eth ??
+              plan?.oo_put_qty_eth ??
+              displayOptQty,
+          ),
+          1,
+        )}ETH`
+      : null,
   ]
     .filter(Boolean)
     .join(" · ");