Move hedge-plan calc actions to second card and add spacing above preview.

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

lib/hedge_plan/templates/hedge_plan_panel.html

@@ -82,16 +82,14 @@
         </div>
         <p class="muted hp-unit-hint">单位说明:权利金结算币=<strong>USDC</strong> · 张数=期权张(整张) · 卖一/买一=价格/张</p>
         <div id="hp-opt-bal-line" class="muted hp-quote-line hp-opt-bal-line"></div>
-      </div>
-    </div>
-    <div class="card hp-preview-card" id="hp-preview-card-po">
-      <div style="display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between">
-        <h2 style="margin:0">情景测算</h2>
-        <div class="form-row" style="margin:0">
+        <div class="form-row hp-action-row">
           <button type="button" class="primary" id="hp-preview-btn">计算</button>
           <button type="button" class="btn-secondary" id="hp-start-btn" disabled title="P0 不开仓">启动计划(P0禁用)</button>
         </div>
       </div>
+    </div>
+    <div class="card hp-preview-card" id="hp-preview-card-po">
+      <h2 style="margin:0 0 8px">情景测算</h2>
       <div id="hp-summary" class="muted" style="margin:8px 0"></div>
       <div class="options-strike-table-wrap">
         <table class="options-strike-table" id="hp-result-table">
@@ -141,7 +139,7 @@
           <p class="muted" id="hp-oo-prem-line"></p>
         </div>
       </div>
-      <div class="card">
+      <div class="card hp-opt-card">
         <h2>期权 T 型报价</h2>
         <div class="form-row">
           <select id="hp-oo-exp-select"><option value="">选择到期日</option></select>
@@ -166,13 +164,13 @@
             </tbody>
           </table>
         </div>
+        <div class="form-row hp-action-row">
+          <button type="button" class="primary" id="hp-preview-btn-oo">计算</button>
+        </div>
       </div>
     </div>
     <div class="card hp-preview-card">
-      <div style="display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between">
-        <h2 style="margin:0">情景测算</h2>
-        <button type="button" class="primary" id="hp-preview-btn-oo">计算</button>
-      </div>
+      <h2 style="margin:0 0 8px">情景测算</h2>
       <div id="hp-summary-oo" class="muted" style="margin:8px 0"></div>
       <div class="options-strike-table-wrap">
         <table class="options-strike-table">
@@ -210,4 +208,4 @@
     </div>
   </div>
 </div>
-<script src="/static/hedge_plan.js?v=8"></script>
+<script src="/static/hedge_plan.js?v=9"></script>