✨ 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

src/AxiOmron.PcbCheck/DesignTime/DesignTimeAdminUnlockDialogService.cs

@@ -0,0 +1,20 @@
+using AxiOmron.PcbCheck.Services.Interfaces;
+
+namespace AxiOmron.PcbCheck.DesignTime;
+
+/// <summary>
+/// 提供设计时管理员解锁弹窗服务占位实现。
+/// </summary>
+public sealed class DesignTimeAdminUnlockDialogService : IAdminUnlockDialogService
+{
+    /// <summary>
+    /// 显示管理员密码输入弹窗并校验是否通过。
+    /// </summary>
+    /// <param name="expectedPassword">期望密码。</param>
+    /// <param name="sessionTimeout">本次解锁会话持续时间。</param>
+    /// <returns>设计时固定返回 <see langword="false"/>。</returns>
+    public bool ShowUnlockDialog(string expectedPassword, TimeSpan sessionTimeout)
+    {
+        return false;
+    }
+}

src/AxiOmron.PcbCheck/DesignTime/DesignTimeAppConfigService.cs

@@ -40,6 +40,7 @@ public sealed class DesignTimeAppConfigService : IAppConfigService
         _config.Sftp = config.Sftp;
         _config.Andon = config.Andon;
         _config.Workflow = config.Workflow;
+        _config.Security = config.Security;
     }
 
     /// <summary>
@@ -98,11 +99,13 @@ public sealed class DesignTimeAppConfigService : IAppConfigService
             Andon = new AndonOptions
             {
                 Enable = true,
-                Url = "http://10.10.20.50/api/andon/alarm",
+                Url = "https://shp.prod.aliyun.mit.uaes.com/api/mit/MAE/Station/Status/alarm",
                 Method = "POST",
                 TimeoutMs = 3000,
-                StationCode = "OMRON-L01",
-                StationName = "欧姆龙 PCB 检测",
+                AndonTheme = "SS7_Auto_Andon",
+                Eid = "PR1965269806334783488",
+                FromSign = "IOT",
+                ServiceId = "4dccd822-86b2-47dd-89bd-ca472ba0d14d",
                 EnableScanFailAlarm = true,
                 EnableFileNotFoundAlarm = true
             },
@@ -114,6 +117,11 @@ public sealed class DesignTimeAppConfigService : IAppConfigService
                 RequireManualResetAfterFault = true,
                 MaxUiLogEntries = 200,
                 MaxBoardRecords = 100
+            },
+            Security = new SecurityOptions
+            {
+                AdminPassword = "AxiOmron@123",
+                AdminSessionTimeoutMinutes = 15
             }
         };
     }

src/AxiOmron.PcbCheck/DesignTime/DesignTimeSftpLookupService.cs

@@ -0,0 +1,44 @@
+using AxiOmron.PcbCheck.Models;
+using AxiOmron.PcbCheck.Options;
+using AxiOmron.PcbCheck.Services.Interfaces;
+
+namespace AxiOmron.PcbCheck.DesignTime;
+
+/// <summary>
+/// 为设计器提供 SFTP 测试结果的设计时服务。
+/// </summary>
+public sealed class DesignTimeSftpLookupService : ISftpLookupService
+{
+    /// <summary>
+    /// 返回设计时文件校验结果。
+    /// </summary>
+    /// <param name="barcode">条码。</param>
+    /// <param name="cancellationToken">取消令牌。</param>
+    /// <returns>固定设计时结果。</returns>
+    public Task<SftpCheckOutcome> CheckFileAsync(string barcode, CancellationToken cancellationToken)
+    {
+        return Task.FromResult(new SftpCheckOutcome
+        {
+            Exists = true,
+            ConnectionSucceeded = true,
+            MatchedFilePath = $"/pcb/{barcode}.txt"
+        });
+    }
+
+    /// <summary>
+    /// 返回设计时连接测试结果。
+    /// </summary>
+    /// <param name="options">SFTP 配置。</param>
+    /// <param name="cancellationToken">取消令牌。</param>
+    /// <returns>固定成功结果。</returns>
+    public Task<SftpConnectionTestOutcome> TestConnectionAsync(SftpOptions? options, CancellationToken cancellationToken)
+    {
+        return Task.FromResult(new SftpConnectionTestOutcome
+        {
+            IsSuccess = true,
+            ConnectionSucceeded = true,
+            RootPathAccessible = true,
+            StatusMessage = "设计时 SFTP 连接成功。"
+        });
+    }
+}

src/AxiOmron.PcbCheck/DesignTime/DesignTimeViewModelLocator.cs

@@ -1,4 +1,5 @@
 using AxiOmron.PcbCheck.Options;
+using AxiOmron.PcbCheck.Services.Interfaces;
 using AxiOmron.PcbCheck.ViewModels;
 
 namespace AxiOmron.PcbCheck.DesignTime;
@@ -12,6 +13,8 @@ public sealed class DesignTimeViewModelLocator
     private readonly DesignTimeDispatcherService _dispatcherService = new();
     private readonly DesignTimeWorkflowControlService _workflowControlService = new();
     private readonly DesignTimeAppConfigService _appConfigService = new();
+    private readonly DesignTimeAdminUnlockDialogService _adminUnlockDialogService = new();
+    private readonly DesignTimeSftpLookupService _sftpLookupService = new();
     private MainWindowViewModel? _mainWindowViewModel;
     private SystemSettingViewModel? _systemSettingViewModel;
 
@@ -25,7 +28,7 @@ public sealed class DesignTimeViewModelLocator
     /// 获取系统设置设计时视图模型。
     /// </summary>
     public SystemSettingViewModel SystemSettingViewModel
-        => _systemSettingViewModel ??= new SystemSettingViewModel(_appConfigService);
+        => _systemSettingViewModel ??= new SystemSettingViewModel(_appConfigService, _sftpLookupService);
 
     /// <summary>
     /// 创建首页设计时视图模型。
@@ -34,6 +37,6 @@ public sealed class DesignTimeViewModelLocator
     private MainWindowViewModel CreateMainWindowViewModel()
     {
         AppConfig config = _appConfigService.Load();
-        return new MainWindowViewModel(_appStateStore, _dispatcherService, _workflowControlService, config);
+        return new MainWindowViewModel(_appStateStore, _dispatcherService, _workflowControlService, config, _adminUnlockDialogService);
     }
 }