feat: Implement Todo Manager with task management features

- Remove client test file as part of cleanup.
- Add task actions for completing, starting, deferring, setting reminders, cloning, mass completing, deleting completed tasks, and exporting to CSV.
- Create Todo application with navigation for tasks and analytics.
- Develop task dashboard with key metrics, trends, and lists for task management.
- Introduce task reminder and overdue escalation flows for automated notifications.
- Implement task object schema with fields for task management, including status, priority, due dates, and recurrence.
- Add task hooks for managing task logic on insert and update events.
- Create reports for tasks by status, priority, owner, overdue tasks, completed tasks, and time tracking analysis.

Author: hotlong