Resolves Issue #1856 and #1857: Return authority validation errors for invalid registry org roles

[afoote-mitre]

Closes Issue #1856 and #1857

Summary

This MR fixes registry organization validation so invalid authority values return structured errors instead of producing an uninformative Parameters were invalid response. It also prevents mixed authority arrays from reaching the joint-approval review-object flow with invalid BaseOrg data.

Important Changes

src/repositories/baseOrgRepository.js

• Adds explicit validation for every authority array item before discriminator-specific validation mutates the authority value.
• Returns structured errors with instancePath, message, and allowed values.
• Prevents invalid authority arrays such as ['cna'] or ['CNA', {}, null, 1234, true] from reaching updateOrgFull() and review-object creation.

test/integration-tests/registry-org/registryOrgCRUDTest.js

• Adds regression coverage for PUT /api/registry/org/:shortname with lowercase authority: ['cna'].
• Verifies the response includes /authority/0 and an allowed-values validation message.

Testing

Steps to manually test updated functionality, if possible

• 1) Run bash -i -c "npm run test:integration".