feat: add Master Admin application functionality

src/app/core/guards/auth/super-admin.guard.ts

@@ -0,0 +1,11 @@
+import { inject } from '@angular/core';
+import { CanActivateFn, Router } from '@angular/router';
+import { AuthService } from '../../services/auth/auth.service';
+
+export const superAdminGuard: CanActivateFn = () => {
+  const auth = inject(AuthService);
+  const router = inject(Router);
+  return (auth.currentUser?.roles ?? []).includes('super_admin')
+    ? true
+    : router.createUrlTree(['/dashboards/crm']);
+};