Ports the two Claude GitHub workflows from the bang repo (which narya lacked):
claude-code-review.yml auto-reviews PRs; claude.yml responds to @claude
mentions on issues/PRs. Review prompt tuned for narya (wire/streaming compat,
DObject/marshaller correctness, concurrency). Requires the
CLAUDE_CODE_OAUTH_TOKEN repo secret to authenticate.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HhfHCXYp2ctWi76Z91y9Ut
