- Add due_date column to tasks table with Supabase migration
- Update database types and tasks_with_assignee view
- Add DatePicker to TaskModal for setting due dates
- Display due dates on KanbanTaskCard, list view, and Etapes section
- Enable Roadmap tab on both Tasks page and Tablo Details page
- Add RoadmapView components with timeline grouped by Etape
- Highlight overdue dates in red across all views
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
