v5.0.7

Changed

• codegraph --help hint in skill references: Three skill reference files (skills/init-project-html/references/codegraph.md, skills/update-project-html/references/codegraph.md, skills/design/references/codegraph.md) now include a prompt telling agents to use apltk codegraph --help and apltk codegraph <subcommand> --help for complete flag details and examples.