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/api/client.ts

@@ -367,6 +367,7 @@ export type PlanState = {
   oo_min_option_hours?: number;
   oo_min_leverage?: number;
   oo_reward_ratio?: number;
+  oo_put_qty_eth?: number;
   sizing_mode?: "manual" | "risk_based";
   risk_based?: boolean;
   ledger: { equity: number; available: number; reserved: number };

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(" · ");

frontend/src/pages/Settings.tsx

@@ -756,7 +756,7 @@ export default function SettingsPage() {
                       />
                       <p className="hint" style={{ margin: "0.35rem 0 0" }}>
                         目标盈利 = 以损预算 × 盈亏比（例预算 100U、比 2 → 目标
-                        200U）。两腿 1:1 平分预算。振幅/选约参数见「选约」页。
+                        200U）。预算平分给 Call/Put，各按卖一独立定仓。
                       </p>
                     </div>
                   ) : null}
@@ -785,7 +785,7 @@ export default function SettingsPage() {
                     <div className="field">
                       <label>定仓模式</label>
                       <div className="mono" style={{ fontSize: 13 }}>
-                        以损定仓（期期固定 · Call/Put 1:1）
+                        以损定仓（期期固定 · 预算平分，按各自卖一定仓）
                       </div>
                     </div>
                   )}
@@ -1048,11 +1048,19 @@ export default function SettingsPage() {
                                   ? ` · 倍投待命(连亏${Number(mg.loss_days) || 0}天)`
                                   : "";
                             return isOo
-                              ? `预算=${budS}U · 估亏=${mxS}U · 出场=预算×${ooRewardRatio}${
-                                  riskPreview.option_qty_eth != null
-                                    ? ` · 单腿≈${riskPreview.option_qty_eth}ETH`
-                                    : ""
-                                }${mgS}`
+                              ? `预算=${budS}U · 各腿≈${
+                                  riskPreview.leg_budget != null
+                                    ? Number(riskPreview.leg_budget).toFixed(2)
+                                    : budS !== "—"
+                                      ? (Number(budS) / 2).toFixed(2)
+                                      : "—"
+                                }U · Call≈${
+                                  riskPreview.call_qty_eth ??
+                                  riskPreview.option_qty_eth ??
+                                  "—"
+                                } · Put≈${
+                                  riskPreview.put_qty_eth ?? "—"
+                                } · 出场=预算×${ooRewardRatio}${mgS}`
                               : `k=${pk ?? "—"} · 预算=${budS}U · 估亏=${mxS}U · 永续=${perp ?? "—"} · 期权=${opt ?? "—"} · 出场=${exit ?? "—"}${basisS}${mgS}`;
                           })()}
                         </div>