Login dialog (prompt_login_qt):
Modal asking for a discord_id:password token. Echo masked. Validates
format before accepting. 'Skip cloud sync' returns None so caller can
bypass sync without blocking the launch.
Conflict dialog (prompt_conflict_qt):
Modal with three radio options — keep_local, use_remote, cancel.
Shown when local files were modified since the last pulled snapshot
AND the remote has a newer snapshot from another host (divergence
state.json detection happens in sync.pull; not wired yet).
Both reuse the Prism dark palette via _apply_prism_dark. Tk fallbacks
not implemented — Qt is the path most players will hit.
Next: state.json (last_pulled_snapshot_id), divergence detection in
sync.pull, integration with these dialogs.
claude-timemachine
d4c76a4e37