- Backfill: show the sidebar spinner + "Preparing…" banner during the brief window
after account creation when state=backfilling but total is not yet counted
(total===0), so a freshly-added account shows progress immediately instead of
looking done until a refresh. The stuck-at-100% guard is preserved.
- Settings: a centered spinner overlay ("Removing account…") covers the screen from
confirm until the (slow) server cascade + accounts refetch complete, so the row
no longer appears frozen before it disappears.
- Add-account wizard: the manual password hint now includes Outlook and gains a
"Help" link opening a popup with per-provider direct links to enable 2-step
verification and generate the app password (Gmail, Outlook, Yahoo, iCloud).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01U72FZiF1W1pb8XxyWBTREA