The review's warning: the READMEs (outer and inner wire sections, en + zh) and
the fd-3 protocol note still claimed the next log frame always merges into an
open entry, while truncateLogs commits the already-billed prefix as its own
entry before the marker. The one exception (truncation) is now stated in both
READMEs and the owning note, paired and re-recorded. The prefix-commit case's
parenthetical describing the pre-fix implementation is removed per the
comment-does-not-record-review-history rule.
fa0565032f