[housekeeping] convert camelCase directory names to kebab-case

[Yonava]

Summary

Directory naming is inconsistent across the monorepo. Most directories use kebab-case (matching npm/Node.js convention), but some use camelCase (e.g. packages/graph-addons/src/nodeAutoLabel).

Task

Audit all src/ directories across packages and rename any camelCase directories to kebab-case. Update all imports accordingly.

Why

• kebab-case is the JS/TS industry standard for directory names
• camelCase directories can cause issues on case-insensitive filesystems (macOS)
• Rest of the monorepo already uses kebab-case (e.g. min-spanning-tree, abstract-syntax-trees, markov-chains)

Known offenders

• packages/graph-addons/src/nodeAutoLabel → node-auto-label