Sudoku v1.1.0

Added

• Title screen with difficulty selection, New Game, Resume, Load Save, and Settings
• Local save support for active puzzles
• Main screen settings button
• Settings menu actions for hints, reset, progress, and returning to the main menu
• Saved-game button states that are disabled when no saved puzzle exists

Changed

• Moved game setup controls out of the board screen
• Moved hints, reset, and progress into Settings
• Kept the main puzzle screen focused on board play, number entry, notes, undo, redo, and erase