Simplify codebase and add ASCII art timer display

[Copilot]

Consolidated the timer implementation from 2 files (1,891 lines) to a single 280-line module with ASCII art visualization.

Changes

Simplified architecture

• Merged Menu.py class logic directly into timer.py
• Reduced codebase by 85% while maintaining all functionality
• Added .gitignore for Python artifacts

ASCII art display

• Large 5-line digit rendering for real-time countdown
• Progress bar with percentage: [████████░░░░] 65%
• Visual timer completion indicator

Code quality

• Thread-safe stopwatch with proper error handling (EOFError, KeyboardInterrupt)
• Division by zero protection in progress calculations
• Removed unused imports and redundant conditionals

Example

# Before: Complex menu system across multiple files
main_menu = Menu("Main menu", [("Stopwatch", stopwatch), ...])
main_menu.show()

# After: Direct menu with ASCII visualization
def main_menu():
    # ... clean menu logic ...
    print(draw_ascii_time("24:59"))  # Renders large ASCII digits
    print(draw_progress_bar(elapsed, total))  # Visual progress

The timer now displays:

 ███   █   █         █████   ███   
█   █  █   █    █    █      █   █  
   █   █████         ████    ████  
  █        █    █        █      █  
█████      █         ████    ███   

[██████████████████░░░░░░░░░░░░░░] 52%

Original prompt

can you simplify this project at all? make it better with ascinart timer?

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