feature: keep sidebar and add service layer

app/Services/User/Contracts/UserServiceInterface.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Services\User\Contracts;
+
+use App\Models\User;
+use Illuminate\Pagination\LengthAwarePaginator;
+
+interface UserServiceInterface
+{
+    public function getDashboard(User $user, string $selectedMonth): LengthAwarePaginator;
+
+    public function getOtherActiveUsers(User $currentUser): \Illuminate\Database\Eloquent\Collection;
+
+    public function sendThankcards(User $sender, string $receiverMsnv, int $amount): void;
+
+    public function updatePassword(User $user, string $newPassword): void;
+}