The reflow model: checklist slides left into a changes-ledger, the site stars, then the client email is the seamless finish. 1440px, El Paso demo. Mocks only — not in code.
Numbered changes in the ledger map to numbered pins on the live page ("1" on the Saturday row). A clearly-private "refine this change" chat, the collapsed case thread, and the approve dock all live in the left column. The site takes the room so you can confirm each edit.
When the last change is confirmed, the email rises as its own focused surface — full mail-chrome (To/Subject/signature) so it can't be mistaken for chat — pre-written in the practice's voice from the real edits. A "what changed" summary sits beside it to confirm the email matches reality.
How the card moves between phases (operator-triggered, animated — not a jump).
Exploratory renderings for sign-off. Nothing here is in code yet.