Python: add missing 'import enum' to compliance/db/models.py shim.
TypeScript: remove duplicate export of useVendorCompliance from
vendor-compliance/context.tsx (already exported from ./hooks).
Docs: add mandatory pre-push checklist (lint + test + build) to
AGENTS.python.md and AGENTS.go.md. [guardrail-change]
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>