PR #17 removed the 'core' group but left references in repoAccess.ts,
causing deployments to fail since Nov 25th.
Changes:
- Remove 'core' team references from 6 repositories in repoAccess.ts
- Replace with 'core-maintainers' to maintain equivalent permissions
- Add scripts/validate-config.ts to validate all team references
- Add pre-commit hook to run validation on config changes
- Add npm run validate script
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
