Tinggit-Gamification-svc

Acceptance Criteria:

• Users can view a leaderboard that displays the total coins of all users in descending order, showing the top users with the most coins at the top.
• The leaderboard should be accessible to all users, and users should not see their own total coins on the leaderboard.
• The leaderboard should be updated in real-time as users earn or spend coins.
• The leaderboard should display the user's name, profile picture (avatar), and total coins.
• The leaderboard should be easily accessible from the gamification service's main menu.
• The leaderboard should show a limited number of top users (e.g., top 10 or top 20), with pagination or scrolling available for more users.
• The total coins displayed on the leaderboard should be securely retrieved from the backend and should not be tampered with.