v2.1.1 - Bug Fix Release

🐛 Bug Fixes

This release addresses critical stability and user experience issues identified in the codebase:

Race Conditions & Thread Safety

• Fixed race condition in progress updates - Added proper mutex synchronization for concurrent repository status updates
• Added thread-safe access - Protected all shared state access with read/write locks
• Fixed channel closure issues - Improved cleanup on context cancellation

Input Validation & Error Handling

• Added test fail rate validation - Ensures --test-fail-rate flag is between 0.0-1.0
• Enhanced error bounds checking - Fixed potential panic in error index calculation
• Improved ANSI code stripping - Now handles all ANSI escape sequences properly
• Added GitHub CLI validation - Checks for gh installation and authentication at startup

User Experience Improvements

• Fixed completion message cycling - No more rapid flickering through celebration messages
• Stable completion screen - Shows single message and exits gracefully after 3 seconds
• Better progress bar handling - Fixed integer overflow issues in progress calculations

Technical Improvements

• Enhanced error categorization - Better handling of network vs. authentication errors
• Improved resource cleanup - Proper cleanup of command execution resources
• Better duration formatting - More accurate time display and ETA calculations
• Fixed Go modules versioning - Updated module path to /v2 for proper major version handling

🧪 Testing

• All existing tests continue to pass
• Added comprehensive thread safety
• Improved error handling coverage

📦 Installation

go install github.com/jdmcgrath/orgsync/v2@v2.1.1

Full Changelog: v2.1.0...v2.1.1