Enable Data Shareability for External Access

Implement mechanisms to allow secure data sharing with external entities outside the BC government.

**Story Points:** 2

The issue names no files, tests, or entry points. Start by reviewing the repository structure and existing data-access and security documentation, then clarify which external entities, data, access controls, and validation are in scope; done should mean an agreed, secure implementation plan and corresponding verification criteria.

Written by the indexing model from the issue text.