A .jsonl file whose name is not a date is ignored by brokerd and by verify;
it is now listed, so "ok" does not seem to cover it.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
M3a review findings 1, 2, 4 and part of 5. One empty log file made brokerd
panic at startup (files[len - 2]); it now opens as an empty log. brokerd's
name check tested one month digit, so a file bxctl ignored could become
brokerd's latest file; both now use proto::is_audit_log_name. Writer no
longer unlinks audit/.lock, which opened a two-writer window. No unwrap in
short_check.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>