feat: add lab tests, patient file management, and prescription improvements

app/Models/Doctor.php

@@ -14,13 +14,15 @@ class Doctor extends Model
         'last_name',
         'speciality',
         'license_id',
+        'is_default',
     ];
 
     protected function casts(): array
     {
         return [
-            'created_at' => JalaliDatetime::class,
-            'updated_at' => JalaliDatetime::class,
+            'is_default'  => 'boolean',
+            'created_at'  => JalaliDatetime::class,
+            'updated_at'  => JalaliDatetime::class,
         ];
     }