- Add .env.example with all supported provider env vars
(OpenAI, Anthropic, DeepSeek, Kimi, Groq, Mistral, Together, Google)
- Update README with environment setup instructions
- Document configuration priority and startup commands
- Whitelist .env.example in .gitignore
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>