- Add DataGrid RowStyle with red highlighting for invalid CSV rows
in BulkMembersView, BulkSitesView, and FolderStructureView
- Fix cancel test locale mismatch by setting EN culture before assertion
- Remove dead FeatureTabBase placeholder (replaced by full tab views)
- Clean up unused xmlns:controls from MainWindow.xaml
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add null-conditional on CsvReader.Context.Parser to fix CS8602 warnings
- Guard ConflictCombo_SelectionChanged against null ViewModel during XAML init
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- DuplicatesViewModel: ModeFiles/Folders, criteria checkboxes, group flattening to DuplicateRow
- Uses TenantProfile site URL override pattern (ctx.Url is read-only)
- ExportHtmlCommand exports DuplicateGroup list via DuplicatesHtmlExportService
- DuplicatesView.xaml: type selector, criteria panel + flattened DataGrid
- DuplicatesView.xaml.cs: DI constructor with DataContext wiring
- SearchViewModel: full filter props, RunOperationAsync via ISearchService
- Uses TenantProfile site URL override pattern (ctx.Url is read-only)
- ExportCsvCommand + ExportHtmlCommand with CanExport guard
- SearchView.xaml: filter panel + DataGrid with all 8 columns
- SearchView.xaml.cs: DI constructor with DataContext wiring
- Create Views/Tabs/SettingsView.xaml (UserControl with language ComboBox en/fr, DataFolder TextBox and Browse button using TranslationSource)
- Create Views/Tabs/SettingsView.xaml.cs (DI constructor injection of SettingsViewModel, LoadAsync on Loaded)
- Update MainWindow.xaml to add xmlns:views namespace and clear placeholder TextBlock from SettingsTabItem
- Register SettingsView as Transient in DI; resolve and set as SettingsTabItem.Content from MainWindow constructor
- All 42 unit tests pass, 0 build errors
