Add Arrow CSR query APIs

[adsharma]

Summary

• Add Node.js queryArrow/queryArrowSync APIs backed by Ladybug queryAsArrow.
• Add ArrowQueryResult.csr() for zero-copy CSR arrays matching the Python binding shape.
• Add apache-arrow as a package dependency for Arrow-facing Node workflows.
• Add CSR test coverage for sync, async, rel-id, no-rel-id, Apache Arrow vector wrapping, and non-CSR rejection cases.

Validation

• CC=/opt/homebrew/opt/llvm/bin/clang CXX=/opt/homebrew/opt/llvm/bin/clang++ npm run build
• npm test -- test/test.js --grep "Arrow query CSR"
• npm test
• node -c src_js/query_result.js
• node -c src_js/connection.js
• git diff --check