- The holder-record removal is best-effort and can no longer throw past
release(); ERELEASED on release is the library having already dropped a
taken-over lock, so it is ignored rather than described as a lock that
"goes stale on its own".
- The signal test's stand-in now spawns a descendant of its own, so the
whole-process-group guarantee is what the test asserts: a regression to
child.kill() or a non-detached spawn leaves the descendant alive and fails.
- The three docs no longer claim a dead holder is always recovered in 30s:
a stale lock directory that cannot be removed runs the wait to its
45-minute cap and names the path.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PsmUAZ6aLUAFqenjJKSSRp
Signed-off-by: cliffhall <cliff@futurescale.com>