Local review round 2 (Codex + Greptile):
- The delete committed whenever the shared snack bar was dismissed, so
another message (a refresh finishing elsewhere) cut the four-second Undo
window short and deleted the source early. The window is now the
service's own timer; only the toast's close button (commitNow) or a
second delete commits sooner.
- The health history was keyed by playlist ID only, so an edited address
or account inherited the old connection's result, failing run included.
Entries now keep a 32-bit FNV-1a fingerprint of the source health key
(no URL or credential); a result for another connection starts over and
a stale entry no longer shows.
- The M3U refresh-cancellation probe still queried the removed row's
.cancel-btn, .busy-state__message and .action-spinner, so its cancel
never fired; it now uses the source row's selectors (smoke run passes,
cancelEffect=true).
- The Xtream delete benchmark waited to catch the "Removing…" row coming
back before it left, which a fast delete could finish before the wait
began. The driver now arms a delete-playlist operation window before the
commit click and ends on its completed event and the absent row.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
