修复storage.json报错问题

layout/main.ui

@@ -140,6 +140,16 @@
                                 </property>
                             </spacer>
                         </item>
+                        <item>
+                            <widget class="QPushButton" name="btnEmergencyRepair">
+                                <property name="text">
+                                    <string>🔧 应急检修，用户勿点</string>
+                                </property>
+                                <property name="minimumHeight">
+                                    <number>30</number>
+                                </property>
+                            </widget>
+                        </item>
                         <item>
                             <widget class="QPushButton" name="btnDonate">
                                 <property name="text">