What the workbook's annotations look like right now — one frozen object per change.
Every annotation, every intent and status, in review order: newest walk first, the agent's order within a walk.
The navigator's current annotation, or null.
null
The ones the navigator walks: open, and not working.
working
1-based position of current in navigable; 0 for none.
0
Bumps on every change.
What the workbook's annotations look like right now — one frozen object per change.