AdminRequestsScreen renders rows from adminRequestsProvider, joining
requester user_id → username via adminUsersProvider for display
(falls back to UUID prefix when the users list hasn't loaded yet).
Approve fires immediately; Reject confirms via dialog. Both are
optimistic with rollback in the controller.
Adds AdminUsersController build-only (the read side) so the row join
works; mutation methods land in Slice 3 alongside the Users screen.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
AsyncNotifier removes the row optimistically on approve/reject; rolls
back to the pre-mutation list on server error. Invalidates
adminCountsProvider so the landing badge stays accurate.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Single landing-screen provider fans out to requests/quarantine/users
list endpoints in parallel and returns counts for the section-card
badges. Per-section AsyncNotifier controllers land alongside their
screens in subsequent commits.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen