List action items with optional filters and pagination.
Privileged access allows you to get action items for the account.
Non-privileged access allows you to get action items for the authenticated user only.

The scope filter controls which action items are returned:

• (no scope - default): All action items the user has access to
• assigned_to_me: Only action items assigned to the authenticated user
• assigned_to_others: Only action items the user can edit, assigned to teammates

The created_at_start, created_at_end, updated_at_start and updated_at_end filters take a
YYYY-MM-DD date or an ISO datetime and are inclusive. A value without a time means midnight UTC, so
pass a time on an end bound (2024-01-05T23:59:59) to cover the whole day. To page through a window
of changes, combine updated_at_start with order_by: updated_at_asc.

Whether updated_at moves depends on where the change was made. Edits in the note itself, including
its text, completion, assignees and due date, all bump updated_at. An assignee or due date changed
outside the note, such as from the action items list, is written to a separate record and leaves
updated_at unchanged, so the updated_at filters do not pick that item up.