Show live hedge budget buffer ratio in options-options rule tips.

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

lib/common/static/hedge_plan.js

@@ -37,7 +37,11 @@
     tradingUsdc: null,
     fundingUsdc: null,
     tradeBudgetUsdc: null,
-    budgetBuffer: 0.95,
+    budgetBuffer: (function () {
+      const raw = root.getAttribute("data-budget-buffer");
+      const n = raw != null && raw !== "" ? Number(raw) : NaN;
+      return !Number.isNaN(n) && n > 0 ? n : 0.95;
+    })(),
     previewOk: false,
     canStart: false,
     previewPlanType: null,
@@ -239,6 +243,15 @@
     if (modal) modal.hidden = true;
   }
 
+  function applyBudgetBuffer(raw) {
+    if (raw == null || raw === "") return;
+    const buf = Number(raw);
+    if (Number.isNaN(buf) || buf <= 0) return;
+    state.budgetBuffer = buf;
+    const el = $("hp-oo-buf-ratio");
+    if (el) el.textContent = fmt(buf, 2);
+  }
+
   function setOptionsBalance(chain) {
     const acct = (chain && chain.options_account) || {};
     const label = (chain && chain.account_label) || acct.label || "期权账户";
@@ -254,8 +267,7 @@
       state.tradeBudgetUsdc = Number(chain.trade_budget_usdc);
     }
     if (chain && chain.budget_buffer != null && chain.budget_buffer !== "") {
-      const buf = Number(chain.budget_buffer);
-      if (!Number.isNaN(buf) && buf > 0) state.budgetBuffer = buf;
+      applyBudgetBuffer(chain.budget_buffer);
     }
     const line =
       label +
@@ -528,6 +540,7 @@
       if (d.oo_bias_ratio != null && Number(d.oo_bias_ratio) > 0 && Number(d.oo_bias_ratio) < 1) {
         state.ooBiasRatio = Number(d.oo_bias_ratio);
       }
+      if (d.budget_buffer != null) applyBudgetBuffer(d.budget_buffer);
       syncOoCloseModeUI();
       setGateLine(d);
       if (state.mode === "options_options") autoFillOoSheets();
@@ -1824,6 +1837,7 @@
   syncPoDirUI();
   syncOoSizeModeUI();
   syncOoCloseModeUI();
+  applyBudgetBuffer(state.budgetBuffer);
   updateOoBudgetLine(null);
   bind();
   void refreshAll();