candle

Enforce Candle contribution flow: never modify main directly, always create a worktree branch, push to fork lvyufeng/candle, and open PR to upstream candle-org/candle. Use for any coding, bugfix, refactor, or release-prep work in this repository.

Mandatory policy for all GPU/NPU backend work: never fall back to CPU, use on-device composite workarounds, preserve native kernel entry points, and document issues in docs/known-kernel-issues.md.