✨ feat(*): 添加管理员解锁与 SFTP 探活能力

* 新增管理员解锁弹窗、手动操作权限控制与倒计时状态
* 支持系统设置页测试 SFTP 连接，并在启动时执行探活
* 补充设计时服务、全局异常兜底与相关单元测试

.claude/settings.local.json

@@ -14,7 +14,16 @@
       "Bash(powershell -NoProfile -Command '$asm=[Reflection.Assembly]::LoadFrom\\(\"C:/Users/yunxiao.zhu/.nuget/packages/iotclient/1.0.42/lib/netstandard2.0/IoTClient.dll\"\\); $type=$asm.GetType\\(\"IoTClient.Clients.Modbus.ModbusTcpClient\"\\); \"BASE: $\\($type.BaseType.FullName\\)\"; $type.GetMethods\\([System.Reflection.BindingFlags]::Instance -bor [System.Reflection.BindingFlags]::Public\\) | Where-Object { $_.Name -match \"Connect|Close|Dispose|Disconnect|Open|Start|Stop|Release\" } | ForEach-Object { $_.DeclaringType.FullName + \" :: \" + $_.ToString\\(\\) }')",
       "Bash(powershell -NoProfile -Command '$asm=[Reflection.Assembly]::LoadFrom\\(\"C:/Users/yunxiao.zhu/.nuget/packages/iotclient/1.0.42/lib/netstandard2.0/IoTClient.dll\"\\); $type=$asm.GetType\\(\"IoTClient.Clients.Modbus.ModbusTcpClient\"\\); $type.GetConstructors\\(\\) | ForEach-Object { $_.ToString\\(\\) }')",
       "Read(//d D:/Dev/Codes/MFD_Solution/Axi_Omron/src/**)",
-      "Bash(dotnet restore:*)"
+      "Bash(dotnet restore:*)",
+      "Bash(systemctl status *)",
+      "Bash(service ssh *)",
+      "Bash(sshd -V)",
+      "Bash(apt list *)",
+      "Bash(dpkg -l)",
+      "Bash(sudo apt-get *)",
+      "Bash(sudo -n true)",
+      "Bash(mkdir -p /tmp/pcb)",
+      "Read(//tmp/**)"
     ]
   }
 }