[3pts] Build console UI layer

[github-actions]

Description

Create console-based user interface for the game.

Depends on: Player, Dungeon, and CombatEngine issues

GameUI Class

Static Run() method as entry point

Main Menu Options

• New Game
• Load Game
• Leaderboard
• Quit

Room View

Display:

• Room name and description
• Available exits
• Enemies present
• Items on ground

Player Actions

• Move (north, south, east, west)
• Attack enemy
• Pick up item
• Use item
• View stats/inventory

Combat Display

• Show turn-by-turn results
• Display damage dealt
• Show health changes
• Announce winner

Game Over Screen

• Display final stats
• Save score to leaderboard
• Option to return to main menu

Requirements

• No game logic in UI layer
• Call game methods and display results only
• Clear separation of concerns
• User-friendly prompts and output

Acceptance Criteria

• GameUI class with static Run() entry point
• Main menu with all options implemented
• New Game starts new player
• Load Game retrieves saved game
• Leaderboard displays top scores
• Quit exits gracefully
• Room view shows all required information
• Player can move between rooms
• Player can attack enemies
• Player can pick up items
• Player can use items
• Player can view stats
• Combat output shows turn details
• Game over screen saves score
• No game logic in UI - only display
• User-friendly prompts and formatting