Let super admins act as a user from the user detail dashboard for
support/debugging ("full with guardrails", audit-only).
Backend: AuthService.impersonate issues a short-lived token for the
target carrying an `act` claim (acting admin); refresh preserves it and
JwtStrategy surfaces `impersonatedBy`. Guardrails: cannot impersonate an
admin or a deactivated account; new ImpersonationGuard blocks sensitive
self-service (change own password/phone) while impersonating. New
AuditLog entity records impersonation start/stop (admin, target, ip,
time); admin endpoints POST users/:id/impersonate + .../impersonation/
stop and GET users/:id/audit.
Frontend: lib/impersonation swaps admin/impersonation tokens in
localStorage; persistent banner with exit; "Login as user" button and an
"Admin access log" tab on the detail page; logout clears impersonation.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a read-only User Detail dashboard for super admins, reachable by
clicking a user name in the admin users list.
Backend: new `admin` module aggregating existing domain services
(no new entities). ADMIN-only endpoints under /api/v1/admin:
overview (profile, account status, wallet balance, revenue, summary
counts), wallet transactions, applications (incl. deleted/docked with
restore eligibility), build/deploy errors, tickets with conversation,
and a composite activity timeline. Adds BillingService.getRevenueSummary
and guards against a wallet get-or-create race in the overview reads.
Frontend: tabbed detail page (overview/applications/activity/errors/
tickets) with lazy per-tab queries; user names in the admin list link to
it (admin only); fa/en i18n keys and response types.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
keyhan