Create a new todo

Creates a new todo item for the authenticated user's company.

Permission Requirements:

• The authenticated user must be an employee or crew member.
• The created_by field is automatically set to the authenticated user.
• The company field is automatically set from the user's company.

Auto-generated Fields:

• When a start datetime is provided, an event is automatically created and linked to the todo.
• When a job is specified, additional tags may be auto-added (e.g., "Job" and the job type label).
• Tags are automatically deduplicated.

Field Restrictions:

• The job field can only be set during creation and cannot be modified later.