Owner pronounced "near perfect". Save current state as the rollback
target. Replace older 2026-05-08-pre-elegantfin snapshot.
Snapshot md5 364cc890c58f02d07cf50b43b31a48f0 — matches both prod
and dev deployed overlay.
Doc 30 lists every file/path-of-record + rollback procedure +
remaining roadmap items.
Tag this commit v6-stable-2026-05-09 after push.
