[Delivery] Audit internal transition doc and ensure tasks are complete

[laurabelinfante]

Summary

Audit the internal transition doc, mark each item complete or open, and capture remaining work.

Transition doc: https://docs.google.com/document/d/1jsBFMWzrDH1vihvzVjopOjMFRt9AmbQy6OboczPUl0U/edit

Acceptance criteria

• Each task in the transition doc marked done or open
• Remaining work documented and assigned a follow-up owner

[SnowboardTechie]

Mostly complete, have a few that are in progress and require admin access or a question to @widal001

Going to mark as blocked for the moment since Billy is OOO, but the list left is small and as long as we connect when he returns I'm not concerned about wrapping up what's left.