feat: add email diagnostics

frontend/src/api.ts

@@ -9,6 +9,7 @@ import {
   ChangePasswordRequest,
   CurrentUser,
   DeliveryStatus,
+  EmailDiagnosticsResult,
   ExcelImportResult,
   InsideVisitor,
   LoginRequest,
@@ -188,6 +189,8 @@ export const updateWatcher1Settings = (payload: Watcher1Settings) =>
   request<Watcher1Settings>('/admin/settings/watcher1', jsonInit('PUT', payload));
 export const runSmsDiagnostics = () =>
   request<SmsDiagnosticsResult>('/admin/sms/diagnostics', { method: 'POST' });
+export const runEmailDiagnostics = () =>
+  request<EmailDiagnosticsResult>('/admin/email/diagnostics', { method: 'POST' });
 export const listAdminUsers = () => request<AdminUser[]>('/admin/users');
 export const updateAdminUserRoles = (id: number, roles: Role[]) =>
   request<AdminUser>(`/admin/users/${id}/roles`, jsonInit('PUT', { roles }));