Directory Structure

Repository Root

FolderRewind/
├── FolderRewind/                        # Main WinUI 3 application project
├── FolderRewind-Plugin-Minecraft/       # MineRewind plugin project
│   └── MineRewind/
├── FolderRewind-Site/                   # Official documentation site (Docusaurus)
├── Reference/                           # Reference codebases (Bili.Copilot, WinUI-Gallery)
├── docs/                                # Internal development documentation
│   ├── PluginDevelopmentGuide.md
│   ├── CodeStructureRefactorPlan.md
│   ├── SponsorEdition.md
│   └── SPONSORS.md
├── .github/                             # GitHub Actions CI/CD workflows
├── 7za.exe                              # Bundled 7-Zip command-line tool
├── FolderRewind.slnx                    # Solution file
├── README.md / README_en.md
├── CONTRIBUTING.md
└── PRIVACY.md

Main Project Internal Structure

FolderRewind/
├── App.xaml / App.xaml.cs               # Application entry point, startup orchestration
├── MainWindow.xaml / MainWindow.xaml.cs  # Main window, title bar and tray management
├── AppConstants.cs                      # Window size constants
├── Models/                              # Data models
│   ├── BackupModels.cs                  # Core models (AppConfig, BackupConfig, etc., ~1300 lines)
│   ├── BackupMetadata.cs                # Incremental backup metadata
│   ├── PluginModels.cs                  # Plugin manifest models
│   ├── TemplateModels.cs                # Configuration template models
│   ├── CloudSyncModels.cs               # Cloud sync models
│   ├── HotkeySettings.cs                # Hotkey settings model
│   ├── LogModels.cs                     # Log models
│   └── AppJsonContext.cs                # System.Text.Json source generator context
├── Services/                            # Business logic services (static classes)
│   ├── ConfigService.cs                 # Configuration management (config.json)
│   ├── BackupService.cs                 # Backup orchestration
│   ├── BackupService.Archive.cs         # 7-Zip archive operations
│   ├── BackupService.Filtering.cs       # File filtering logic
│   ├── BackupService.Helpers.cs         # Utility methods
│   ├── BackupService.Metadata.cs        # Incremental backup metadata management
│   ├── BackupService.Pruning.cs         # Old archive cleanup
│   ├── BackupService.Restore.cs         # Restore logic
│   ├── HistoryService.cs                # Backup history management
│   ├── AutomationService.cs             # Scheduled/event-triggered automation
│   ├── NavigationService.cs             # Page navigation
│   ├── ThemeService.cs                  # Theme management
│   ├── NotificationService.cs           # Notification service
│   ├── EncryptionService.cs             # Encryption password management
│   ├── CloudSyncService.cs              # rclone cloud sync
│   ├── MiniWindowService.cs             # Mini window management
│   ├── FolderWatcherService.cs          # File system monitoring
│   ├── FileLockService.cs               # File lock detection
│   ├── StartupService.cs                # Startup registration
│   ├── AppUpdateService.cs              # App update checking
│   ├── SponsorService.cs                # Sponsor edition verification
│   ├── TemplateService.cs               # Configuration template management
│   ├── I18n.cs                          # Internationalization helper
│   ├── UiDispatcherService.cs           # UI thread dispatching
│   ├── MainWindowService.cs             # Main window reference management
│   ├── Plugins/                         # Plugin subsystem
│   │   ├── PluginService.cs             # Plugin lifecycle management
│   │   ├── IFolderRewindPlugin.cs       # Core plugin interface
│   │   ├── IFolderRewindBackupFilterProvider.cs
│   │   ├── IFolderRewindBackupScopeProvider.cs
│   │   ├── IFolderRewindHotkeyProvider.cs
│   │   └── IFolderRewindKnotLinkCommandHandler.cs
│   ├── Hotkeys/                         # Hotkey subsystem
│   │   ├── HotkeyManager.cs
│   │   ├── HotkeyParser.cs
│   │   ├── NativeHotkeyService.cs
│   │   ├── HotkeyGesture.cs
│   │   └── HotkeyDefinition.cs
│   ├── KnotLink/                        # KnotLink protocol implementation
│   │   ├── SignalSender.cs
│   │   ├── SignalSubscriber.cs
│   │   ├── OpenSocketQuerier.cs
│   │   ├── OpenSocketResponser.cs
│   │   ├── TcpClient.cs
│   │   └── KnotLinkCommandParser.cs
│   └── Diagnostics/                     # Diagnostics
│       └── MemoryTelemetryService.cs
├── ViewModels/                          # Page-level ViewModels
│   └── ViewModelBase.cs                 # Base class (ObservableObject + UI dispatching)
├── Views/                               # XAML pages and dialogs
│   ├── ShellPage.xaml                   # Navigation shell
│   ├── HomePage.xaml                    # Home dashboard
│   ├── FolderManagerPage.xaml           # Source folder management
│   ├── BackupTasksPage.xaml             # Backup task progress
│   ├── HistoryPage.xaml                 # History timeline
│   ├── LogPage.xaml                     # Log viewer
│   ├── SettingsPage.xaml                # Settings page
│   ├── MiniWindow.xaml                  # Mini window
│   ├── PluginStorePage.xaml             # Plugin store
│   ├── ConfigSettingsDialog.xaml        # Configuration edit dialog
│   ├── ConfigCloudSyncDialog.xaml       # Cloud sync configuration dialog
│   ├── TemplateManagerDialog.xaml       # Template management dialog
│   ├── TemplateSubmissionDialog.xaml    # Template submission dialog
│   ├── SponsorWindow.xaml               # Sponsor edition info window
│   └── Settings/                        # Settings page sub-controls
│       ├── AboutControl.xaml
│       ├── AppearanceLayoutControl.xaml
│       ├── CoreBehaviorControl.xaml
│       ├── DataManagementControl.xaml
│       ├── DiagnosticsControl.xaml
│       ├── PluginsKnotLinkControl.xaml
│       ├── PresetSettingsControl.xaml
│       └── RuntimeEnvControl.xaml
├── Converters/                          # XAML value converters
│   └── BoolToVisibility, BoolToColor, StringToBitmap, etc.
└── Strings/                             # Localization resources
    ├── zh-CN/Resources.resw
    └── en-US/Resources.resw

Key Entry Files

File	Startup Responsibility
App.xaml.cs	Load configuration -> Apply language/theme -> Create main window -> Initialize tray, plugins, automation, KnotLink, diagnostics
MainWindow.xaml.cs	Title bar integration (Mica), theme updates, close behavior (minimize to tray vs. exit), hotkey initialization
ShellPage.xaml.cs	Navigation shell, routes page navigation, manages InfoBar notifications, runs startup dialog chain