Reverted all instances of CLAUDE_API_KEY back to ANTHROPIC_API_KEY to maintain
compatibility with existing infrastructure and GitHub secrets. This affects:
- Environment variable examples (.env.example files)
- Python scripts and notebooks
- Documentation and README files
- Evaluation scripts and test files
Other naming changes (Claude API, Claude Console, Claude Docs, Claude Cookbook) remain intact.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>