docs(coil): re-measure the seam ledger on the landing branch

The landing branch is PR #101's rebase (base 196c8ea, 95 upstream
commits) plus this sync's follow-up fixes; four rows and the header move
by comment-length and the enqueue-toast fix.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: radroid