- Add kanban_columns table for custom column support
- Add columnId and columnOrder fields to tasks
- Create NestJS Kanban module with CRUD endpoints
- Implement KanbanBoard, KanbanColumn, KanbanTaskCard components
- Add drag & drop support between columns using svelte-dnd-action
- Add Quick Add Task inline in each column
- Add filter panel (priority, project, labels, search)
- Add /kanban route and navigation link
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add vCard/CSV file import with duplicate detection and merge options
- Add Google Contacts OAuth2 integration for importing from Google
- Add vCard/CSV export with format selection and filtering options
- Add connected_accounts table for OAuth token storage
- Add FileUploader, ImportPreview, GoogleImport components
- Add ExportModal with format selection (vCard/CSV)
- Add i18n translations for import/export (DE/EN)
