- Removed duplicate m_accountService and m_selectedAccountId declarations
- Fixed indentation in private section (removed extra spaces)
- All member variables now declared once with proper initialization
- PreferencesService: QSettings-based persistence for all app settings
- StartupBehaviorService: Windows registry auto-start management with policy detection
- TranslationService: Language management with QTranslator, 9 built-in languages
- AiActionOptionsService: 30+ AI translation language options
- SettingsView: New 'Preferences' tab with full UI:
* Search Mode (Local/Online)
* Default App Mode (Mail/Calendar/Contacts/Settings)
* Language selector (9 built-in + .qm files)
* Email Sync Interval (1-1440 minutes)
* Startup Behavior (auto-start, minimize to tray, notifications)
* AI Translation (default language, summarize language, summary save path)
- MainMainWindow: Service wiring (PreferencesService, StartupBehaviorService, TranslationService, AiActionOptionsService)
- CMake: Added all new service files
All services integrated and wired to SettingsView.
- SettingsView: complete UI with tabs for Accounts, Categories, Rules, Templates, Signatures, General, Appearance
- Categories: QTreeWidget with hierarchical view, color picker, parent categories
- Rules: QListWidget with RuleEditorDialog integration, toggle enabled
- Templates: QListWidget with TemplateEditorDialog integration
- Signatures: QListWidget with SignatureEditorDialog integration
- SignatureDao: full CRUD with default signature support
- common_structs.h: QColor for Category, all structs centralized
- icons.qrc: updated with Linear/Outline/Bold icons from resources
- Category: QColor instead of QString for color
- EmailTreeModel/DateGroupProxyModel: email grouping by date
- MailListView: QTreeView with date grouping combo
- ReaderView: subject frame with shadow, avatar in header, body inside header
- MainWindow: frameless with rounded corners, 1px border, edge resize, no status bar
- icons.qrc: complete icon set from resources/icons/SVG
javier