feat: add ApiResponse trait for standardized API responses

chore: update composer dependencies to include phppresentation

chore: update composer.lock after adding phppresentation

feat: create categories migration for category management

feat: create templates migration for template storage

feat: create template generations migration for tracking template usage

feat: create template keys migration for template customization

feat: create notifications migration for user notifications

feat: update API routes for categories, templates, and user profile management

docs: update API documentation to include new endpoints for profile and wallet

app/Services/NotificationService.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Services;
+
+use App\Enums\NotificationType;
+use App\Models\Notification;
+use App\Models\User;
+
+class NotificationService
+{
+    /**
+     * @param  array<string, mixed>|null  $data
+     */
+    public function send(User $user, NotificationType $type, string $title, string $body, ?array $data = null): Notification
+    {
+        return $user->notifications()->create([
+            'type' => $type,
+            'title' => $title,
+            'body' => $body,
+            'data' => $data,
+        ]);
+    }
+
+    public function markAllAsRead(User $user): void
+    {
+        $user->notifications()->whereNull('read_at')->update(['read_at' => now()]);
+    }
+}