chore: add a Claude.md file to help with contributions (#10343)
* chore: add a Claude.md file to help with contributions
* improving AI contribution expectations
* divvy up claude.md to task specific files
* Update CONTRIBUTING.md
Co-authored-by: Yihui Liao <44729383+yihuiliao@users.noreply.github.com>
* review updates
* code review
* fix symlink
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Co-authored-by: Yihui Liao <44729383+yihuiliao@users.noreply.github.com>