refactor: refactor controllers, services, validation and introduce DTOs, FormRequests and domain exceptions

app/Http/Requests/User/SendThankCardRequest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Http\Requests\User;
+
+use App\Models\Administration;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class SendThankCardRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     */
+    public function rules(): array
+    {
+        return [
+            'receiver' => [
+                'required',
+                Rule::exists('user', 'msnv')->where('status', config('constants.STATUS_ACTIVE'))
+            ],
+            'amount'   => 'required|integer|min:1|max:' . Administration::MAX_SEND_CARD_PER_MONTH,
+        ];
+    }
+}