修复删除强平模板后 embed 因 TemplateNotFound 整页 500。

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

lib/instance/templates/index.html

@@ -208,16 +208,8 @@
         {% elif page == 'trade' %}
         <div class="dual-panel-grid" style="grid-column:1/-1">
         <div class="card">
-            <div style="display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:8px">
-                <h2 style="margin-bottom:0">实盘下单监控</h2>
-                {% if focus_order_id %}
-                <a href="/order_focus?order_id={{ focus_order_id }}" class="btn-del" style="text-decoration:none;background:#1f3a5a;color:#8fc8ff">放大查看K线(100根)</a>
-                {% else %}
-                <span class="btn-del" style="background:#2f2f44;color:#9aa;cursor:not-allowed">暂无持仓可放大</span>
-                {% endif %}
-            </div>
-            {% include order_rule_tips_tpl %}
-            {% include 'order_monitor_open_form.html' %}
+            <h2 style="margin-bottom:8px">实盘下单监控</h2>
+            <p class="muted">永续下单已下线,请使用「期权」页。</p>
         </div>
         <div class="card">
             <h2 style="margin-bottom:8px">实时持仓</h2>
@@ -255,7 +247,6 @@
                                 · <span class="pos-time-close-cd" id="order-time-close-cd-{{ o.id }}">--:--:--</span>
                             </span>
                             {% endif %}
-                            {% include 'force_close_order_badge.html' %}
                             <span class="pos-side-badge {{ 'pos-side-long' if o.direction == 'long' else 'pos-side-short' }}">{{ '做多' if o.direction == 'long' else '做空' }}</span>
                         </div>
                         <div class="pos-head-actions">