Add instance nav prefs, env config UI, and PM2 restart.

P1-P4: configurable nav/section visibility in system settings, full .env editor with restart badges, password change, runtime hot overrides, and single-instance pm2 restart. Works in hub embed iframe.
Co-authored-by: Cursor <cursoragent@cursor.com>

lib/instance/templates/settings_panel.html

@@ -1,19 +1,29 @@
-{# 系统设置：资金划转 + 数据导出（顶栏资金与统计见 instance_header_panel） #}
+{# 系统设置：导航显示 + 账户密码 + 资金划转 + 数据导出 #}
 <div class="settings-page settings-page--ops">
+    {% include 'display_prefs_panel.html' %}
+
+    {% if display.show_settings_password %}
+    {% include 'password_settings_panel.html' %}
+    {% endif %}
+
     <div class="card settings-card settings-card--side-panel">
         <div class="settings-side-subcards">
-            {% if instance_settings.options_settings_enabled %}
+            {% if instance_settings.options_settings_enabled and display.show_settings_options_swap %}
             <div class="card settings-subcard settings-subcard--ops">
                 <h3 class="settings-subcard-title">币种兑换</h3>
                 {% include 'options_settings_swap.html' %}
             </div>
+            {% endif %}
+            {% if instance_settings.options_settings_enabled and display.show_settings_options_transfer %}
             <div class="card settings-subcard settings-subcard--ops">
                 <h3 class="settings-subcard-title">期权资金划转</h3>
                 {% include 'options_settings_transfer.html' %}
             </div>
+            {% endif %}
+            {% if instance_settings.options_settings_enabled %}
             {% include 'options_settings_panel.html' %}
             {% endif %}
-            {% if instance_settings.show_transfer %}
+            {% if instance_settings.show_transfer and display.show_settings_transfer %}
             <div class="card settings-subcard settings-subcard--ops">
                 <h3 class="settings-subcard-title">永续资金划转</h3>
                 <p class="settings-subcard-desc">子账户永续：资金账户与交易账户之间划转 USDT。</p>
@@ -21,6 +31,7 @@
             </div>
             {% endif %}
 
+            {% if display.show_settings_export %}
             <div class="settings-side-export">
                 <div class="settings-side-export-head">
                     <span class="settings-side-export-label">数据导出</span>
@@ -33,6 +44,7 @@
                     <a href="/export/key_monitor_history">关键位历史</a>
                 </div>
             </div>
+            {% endif %}
         </div>
     </div>
 </div>