feat: add PasswordRequest for password validation with custom messages

app/Http/Requests/Admin/PasswordRequest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Http\Requests\Admin;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class PasswordRequest extends FormRequest
+{
+    // Mengarahkan error ke tas 'updatePassword'
+    protected $errorBag = 'updatePassword';
+
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'password' => 'required|min:8|confirmed',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'required'  => 'Kata sandi baru wajib diisi.',
+            'min'       => 'Kata sandi minimal :min karakter.',
+            'confirmed' => 'Konfirmasi kata sandi tidak cocok.',
+        ];
+    }
+}