feature: keep sidebar and add service layer

app/Services/Auth/Contracts/AuthServiceInterface.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Services\Auth\Contracts;
+
+use App\Models\User;
+use Illuminate\Http\Request;
+
+interface AuthServiceInterface
+{
+    public function attemptLogin(array $credentials, Request $request): array;
+
+    public function logout(Request $request): void;
+
+    public function getRedirectRouteForUser(User $user): string;
+}