fix: auto-populate prescription content and lab content from pre-selected defaults

app/Providers/AppServiceProvider.php

@@ -11,6 +11,7 @@
 use App\Models\SurgeryAppointment;
 use App\Models\SurgeryCenter;
 use App\Models\Treatment;
+use App\Models\LabTest;
 use App\Models\Visit;
 use App\Observers\PatientIllnessObserver;
 use App\Observers\PatientObserver;
@@ -31,6 +32,7 @@ public function boot(): void
         Patient::observe($observer);
         Patient::observe(PatientObserver::class);
         Doctor::observe($observer);
+        LabTest::observe($observer);
         Treatment::observe($observer);
         Medication::observe($observer);
         PaymentType::observe($observer);