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

app/Models/LabTest.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use App\Casts\JalaliDatetime;
+use Illuminate\Database\Eloquent\Model;
+
+class LabTest extends Model
+{
+    protected $fillable = [
+        'name',
+        'notes',
+        'is_default',
+        'is_active',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'is_default' => 'boolean',
+            'is_active'  => 'boolean',
+            'created_at' => JalaliDatetime::class,
+            'updated_at' => JalaliDatetime::class,
+        ];
+    }
+}