feat: add Agent Skill for S1 to S2 migration (#9778)
* fixed TabList render function children kept Item instead of converting to Tab
* import cleanup: removeComponentImport was only checking the first matching import and could miss v3 imports when an @react-spectrum/s2 import appears first
* dynamic import('@react-spectrum/s2') was incorrectly flagged as a v3 dynamic import
* Fixed in codemod options parsing
* more import fixes
* add agent mode (non-interactive, run transforms only)
* add e2e tests
* have --components include related components
* yarn.lock
* update outdated links
* bump @adobe/react-spectrum version
* fix missing imports and remove unused
* fix snapshot
* yarn.lock
* map illustrations to s2 illustrations
* initialize migration skill
* typo
* update README
* add more content to skill content
* lint
* update migration skill
* update docs
* reference react-spectrum-s2 in migration skill
* rename skill to migrate-react-spectrum-v3-to-s2
* improve skill content
* include scope and final report
