Admin suite: monitoring dashboard, user management/ban, broadcast, reports, SMS test

- /Admin/Overview: platform monitoring stats (users by role, facilities, listings, applies, push subs, queue, reports, bans)
- /Admin/Users: search/filter + ban/unban (User.IsBanned + reason); banned users blocked at login
- /Admin/Broadcast: send announcement (in-app + web push) to all / staff / employers via NotificationService
- Reports: report button on shift/job detail → /report endpoint → /Admin/Reports (resolve/dismiss)
- Settings: 'send test SMS' button; admin cross-nav links; SMS API config already in place
- migration AdminBanReports; verified overview/users/broadcast/report persist

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/JobsMedical.Web/Pages/Shared/_Layout.cshtml

@@ -50,7 +50,7 @@
                 {
                     @if (User.IsInRole("Admin"))
                     {
-                        <a asp-page="/Admin/Index" style="margin-inline-end:14px; font-weight:600;">پنل مدیریت</a>
+                        <a asp-page="/Admin/Overview" style="margin-inline-end:14px; font-weight:600;">پنل مدیریت</a>
                     }
                     @if (User.IsInRole("FacilityAdmin"))
                     {