add all controllers logic

app/Services/Frontend/ProfileIconService.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Services\Frontend;
+
+use App\Models\User;
+
+class ProfileIconService
+{
+    public function buildForUser(int $userId): array
+    {
+        $user = User::query()->find($userId);
+        if (!$user) {
+            return [
+                'userName' => 'User not found',
+                'userInitials' => '??',
+            ];
+        }
+
+        $firstname = (string) ($user->firstname ?? '');
+        $lastname = (string) ($user->lastname ?? '');
+
+        $initials = '';
+        if ($firstname !== '') {
+            $initials .= strtoupper($firstname[0]);
+        }
+        if ($lastname !== '') {
+            $initials .= strtoupper($lastname[0]);
+        }
+
+        return [
+            'userName' => trim($firstname . ' ' . $lastname),
+            'userInitials' => $initials !== '' ? $initials : '??',
+        ];
+    }
+}