fix(spec,cli): regenerate the migration projections; the guidance pin holds the stage-6 families

registry.ts, spec-changes.json and docs/protocol-upgrade-guide.md are
regenerated by their generators from the rewritten entries. The
os migrate meta guidance pin covers rest-, analytics-, view-, package-,
object-, sharing-, audit-, flow-, http- and inline-, and its REWRITTEN
floor lists the 34 entries this stage rewrote for the first time.

Claude-Session: https://claude.ai/code/session_01ARcDurZ5j34RdqsGgc4jgH
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude