Remove cmd/supervisor/supervisor binary from git (was accidentally
committed) and add it to .gitignore. Move LITELLM_API_KEY from the
prompt string into the subprocess env, preventing it from appearing
in error log output when JSON parsing fails.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replaces the stub with the actual supervisor entrypoint: loads config,
reads supervisor CLAUDE.md and tdd.md, constructs the executor and TDD
skill, registers them, and starts the HTTP/MCP server.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>