Relocates the standalone @galaxyproject/galaxy-api-client package under
client/ as a sibling to the future workspace packages directory. No
workspace adoption yet -- the package remains a standalone pnpm project
at its new location, with its own lockfile.
Along with the move:
- Retarget src/api symlink to ../../../src/api (one level deeper).
- Adjust sync-version.js's GALAXY_ROOT relative path for the new depth.
- Update client-api-test.yaml and publish_artifacts.yaml paths.
- Add packages/ to client/.eslintrc.js ignorePatterns so nested workspace
packages aren't pulled into client/tsconfig's lint scope.
- Prettier autofixes applied to the moved files by the pre-commit hook.
