feat: initial project setup with Laravel 12 and Filament v4

app/Models/OsurgInitial.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use App\Casts\JalaliDatetime;
+use Illuminate\Database\Eloquent\Model;
+
+class OsurgInitial extends Model
+{
+    protected $fillable = [
+        'init_parameter',
+        'init_value',
+        'attachment',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'created_at' => JalaliDatetime::class,
+            'updated_at' => JalaliDatetime::class,
+        ];
+    }
+
+
+    public static function val(string $key, mixed $default = null): mixed
+    {
+        return cache()->remember(
+            "osurg_initial.{$key}",
+            60,
+            fn () => static::where('init_parameter', $key)->value('init_value') ?? $default
+        );
+    }
+}