Fix option history to full closes only, 2-decimal USDC, restore hide-delete.

Filter OKX positions-history to type 2/3/6, format premium and bid recovery to 2 decimals, and allow locally hiding rows via delete button.

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

lib/options/templates/options_panel.html

@@ -198,10 +198,11 @@
                                     <th>状态</th>
                                     <th>盈亏</th>
                                     <th>时间</th>
+                                    <th>操作</th>
                                 </tr>
                             </thead>
                             <tbody id="opt-history-tbody">
-                                <tr><td colspan="6" class="muted">加载中…</td></tr>
+                                <tr><td colspan="7" class="muted">加载中…</td></tr>
                             </tbody>
                         </table>
                     </div>
@@ -211,4 +212,4 @@
     </div>
 </div>
 <script src="/static/options_expiry_countdown.js?v=1"></script>
-<script src="/static/options_panel.js?v=24"></script>
+<script src="/static/options_panel.js?v=25"></script>