Mailbox Labels

What this feature is for

Labels provide deterministic organization and workflow branching.

Workflow

1. Read labels.
2. Create/update labels to represent automation states.
3. Apply labels as processing checkpoints.
4. Remove stale labels when workflow progresses.

Endpoints

• GET /api/v1/mailbox_labels
• POST /api/v1/mailbox_labels
• PATCH /api/v1/mailbox_labels/{id}
• DELETE /api/v1/mailbox_labels/{id}