Refactor character class handling across components: Replace hardcoded character class definitions with a centralized CHARACTER_CLASSES import, enhancing maintainability and consistency. Update ProfileForm, Leaderboard, and LeaderboardSection components to utilize new utility functions for character class icons and names, improving code clarity and reducing duplication.

services/users/user-stats.service.ts

@@ -1,5 +1,5 @@
 import { prisma } from "../database";
-import type { User, Role, Prisma } from "@/prisma/generated/prisma/client";
+import type { User, Role, Prisma, CharacterClass } from "@/prisma/generated/prisma/client";
 import { NotFoundError } from "../errors";
 import { userService } from "./user.service";
 
@@ -19,7 +19,7 @@ export interface LeaderboardEntry {
   level: number;
   avatar: string | null;
   bio: string | null;
-  characterClass: string | null;
+  characterClass: CharacterClass | null;
 }
 
 /**