Refactor event handling and user management: Replace direct database calls with service layer methods for events, user profiles, and preferences, enhancing code organization and maintainability. Update API routes to utilize new services for event registration, feedback, and user statistics, ensuring a consistent approach across the application.

app/profile/page.tsx

@@ -1,6 +1,6 @@
 import { redirect } from "next/navigation";
 import { auth } from "@/lib/auth";
-import { prisma } from "@/lib/prisma";
+import { userService } from "@/services/users/user.service";
 import { getBackgroundImage } from "@/lib/preferences";
 import NavigationWrapper from "@/components/NavigationWrapper";
 import ProfileForm from "@/components/ProfileForm";
@@ -12,23 +12,20 @@ export default async function ProfilePage() {
     redirect("/login");
   }
 
-  const user = await prisma.user.findUnique({
-    where: { id: session.user.id },
-    select: {
-      id: true,
-      email: true,
-      username: true,
-      avatar: true,
-      bio: true,
-      characterClass: true,
-      hp: true,
-      maxHp: true,
-      xp: true,
-      maxXp: true,
-      level: true,
-      score: true,
-      createdAt: true,
-    },
+  const user = await userService.getUserById(session.user.id, {
+    id: true,
+    email: true,
+    username: true,
+    avatar: true,
+    bio: true,
+    characterClass: true,
+    hp: true,
+    maxHp: true,
+    xp: true,
+    maxXp: true,
+    level: true,
+    score: true,
+    createdAt: true,
   });
 
   if (!user) {