feat(api): patient records foundation — consent and privacy / tests and fixtures

[inteee]

Sprint theme: Patient records foundation
Scope: Build the patient master record layer on top of the clinic and staff work already in place.
Area: consent and privacy
Focus: tests and fixtures

[deslawson]

@deslawson has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Id love to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @deslawson to this issue.