New package @metaobjectsdev/docs-site (HTML documentation-site generator +
meta docs --site / --scaffold-site). metadata: deriveM2MFields resolves the M:N
@through junction by FQN as well as bare name. cli: the docs --site + scaffold-site
surface. Full 0.15.x TS lockstep bump.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>