Triaged, not adopted wholesale. Folded:
- Reviewing refreshes .viewed, as it already did. It is now stated, so the
two clocks cannot read as disagreeing.
- INV-4 is scoped to pre-R2 request shapes. back=view is the declared
exception.
- back=view lands on the review only for media items. Anything else falls
back to the booth page.
- In-place regions: every element whose content can depend on marks is a
region, including the rail counts, the filmstrip and the tape. The stage
never is.
- The script never re-POSTs. A lost response must not duplicate a note or
re-date an answer.
- The dangling "invariant 5" now points at the Booth's CLAUDE.md invariant 5.
- "M" is defined once. Needs-you is picks only. Every key is suppressed in
editable fields.
- The toggle and the narrow collapse are classified against INV-3.
- Every Booth state file is a dotfile, stated. So are "no generated
thumbnails" and the audio placeholder.
- The requirement wording is tightened, and C7 records the voice and emblem
rulings.