feat: options sheet sizing, ITM/OTM labels, and 14-day chain view

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

lib/options/templates/options_panel.html

@@ -5,7 +5,7 @@
     {% if not options_enabled %}
     <div class="flash" style="margin-bottom:12px">期权 API 未启用：请在 <code>crypto_monitor_okx/.env</code> 设置 <code>OKX_OPTIONS_ENABLED=true</code> 及主账户 <code>OKX_OPTIONS_API_*</code>，然后 <code>pm2 restart crypto_okx --update-env</code>。</div>
     {% endif %}
-    <p class="muted options-hint">资金账户兑换 USDT→USDC 后，划转到交易账户即可买入。报价单位为每 1 ETH/BTC；1 张 = 0.01 ETH/BTC。表格中点「买入」直接下单；或点「选择」后在下方确认张数再买入。</p>
+    <p class="muted options-hint">资金账户兑换 USDT→USDC 后，划转到交易账户即可买入。报价单位为每 1 ETH/BTC；1 张 = 0.01 ETH/BTC。期权链展示近 <span id="opt-chain-dte">14</span> 日到期合约，标注实值/虚值；下单可指定张数。</p>
 
     <div class="options-funds-grid">
         <div class="options-funds-col">
@@ -72,6 +72,7 @@
                 <thead>
                     <tr>
                         <th>行权价</th>
+                        <th>类型</th>
                         <th>合约</th>
                         <th>卖一</th>
                         <th>买一</th>
@@ -79,7 +80,7 @@
                     </tr>
                 </thead>
                 <tbody id="opt-strike-tbody">
-                    <tr><td colspan="5" class="muted">请选择到期日</td></tr>
+                    <tr><td colspan="6" class="muted">请选择到期日</td></tr>
                 </tbody>
             </table>
         </div>
@@ -94,8 +95,10 @@
             <div><span class="k">ETH/BTC 数量</span><span id="opt-order-eth" class="v">—</span></div>
             <div><span class="k">预估权利金</span><span id="opt-order-premium" class="v">—</span></div>
         </div>
-        <div class="form-row">
-            <label><input type="radio" name="opt-size-mode" value="budget_full" checked> 按单笔上限打满</label>
+        <div class="form-row options-order-mode-row">
+            <label><input type="radio" name="opt-size-mode" value="sheets" checked> 指定张数</label>
+            <input type="number" id="opt-sheets-amount" min="1" step="1" value="1" placeholder="张数">
+            <label><input type="radio" name="opt-size-mode" value="budget_full"> 按单笔上限打满</label>
             <label><input type="radio" name="opt-size-mode" value="eth_amount"> 指定币数量</label>
             <input type="number" id="opt-eth-amount" min="0.01" step="0.01" placeholder="如 0.5" style="display:none">
             <input type="text" id="opt-signal-note" placeholder="备注（关键位说明）">
@@ -128,4 +131,4 @@
         </div>
     </div>
 </div>
-<script src="/static/options_panel.js?v=2"></script>
+<script src="/static/options_panel.js?v=3"></script>