v0.7.0 - Enhanced Stats UI & Idle Screen Fix

🎉 New Features

• Enhanced Stats UI: Added "Last Typed" column showing when each character was last practiced
• Human-readable timestamps: Shows natural language like "2 hours ago", "yesterday", "just now"

🐛 Bug Fixes

• Idle screen reset: Coming out of idle screen now properly resets the typing session to the beginning
• Session state management: Improved idle timeout handling and activity tracking

🔧 Technical Improvements

• Added time-humanize library for natural language time formatting
• Extended character statistics with datetime tracking
• Enhanced database queries to include latest session timestamps
• Improved type safety with expanded tuple structures

📊 Database Enhancements

• Character statistics now track when each character was last typed
• Backward-compatible database schema updates
• Optimized queries for datetime-aware statistics

🧪 Testing

• All 219 tests passing
• Comprehensive coverage maintained at 67.26%
• Added tests for idle behavior and datetime functionality

This release focuses on improving the user experience with better statistical insights and fixing the idle screen behavior that was causing confusion for users.