Changes

app/Http/Controllers/ClientScheduleController.php

@@ -23,6 +23,7 @@ class ClientScheduleController extends Controller
                     $query->whereRaw('LOWER(title) like ?', ["%".strtolower($search)."%"]);
                 })
                 ->with('schedules')
+                ->with('faculty')
                 ->orderBy('title')
                 ->get());
         }

app/Http/Resources/ClientEducationalGroupResource.php

@@ -18,6 +18,7 @@ class ClientEducationalGroupResource extends JsonResource
             'id' => $this->id,
             'title' => $this->title,
             'schedules' => ClientScheduleSearchResource::collection($this->schedules),
+            'faculty' => $this->faculty->title,
         ];
     }
 }