- Detect macOS vs Linux sed syntax automatically
- Use appropriate sed command for each platform
- Fixes workflow failure in Docker container
macOS: sed -i '' (BSD sed)
Linux: sed -i (GNU sed)
- Fix badge URLs and remove duplicates
- Add update-all-badges.sh script for single commit updates
- Update CI/CD workflow to use environment variables
- Remove complex sequential commit logic
- Follow KISS principle with simple env var approach
