Move specs/RepoClassificationStandard.md to
canon/standards/repo-classification-standard_v1.0.md with provenance
frontmatter (id: canon-repo-classification, status: active, v1.0). The
standard originated in Helix Forge; the-custodian is interim steward. Leave
a pointer stub in specs/ redirecting to canon and the rollout workplan.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>