docs: add RFC-001 and conformance tests at AAIF submission paths

- docs/rfc-001-policy-bundle.md (mirrors docs/rfcs/RFC-001-policy-bundle.md)
- tests/conformance/README.md (pointer to packages/conformance-tests)

Fixes broken links in AAIF working group submission.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people