[PB-4610] Opaque PoC

[TamaraFinogina]

Description

This PR is for the PoC for opaque login (just to agree on the API).

During login, we call is2FAorOpaqueNeeded, which tells us if login should be with Opaque or not. The draft implementation for opaque auth is in src/app/auth/services/auth.opaque.ts.

Related Issues

Proof of Concept for PB-4610

Related Pull Requests

• SDK with new endpoints

Checklist

• [x] Changes have been tested locally.
• [x] Unit tests have been written or updated as necessary.
• [ ] The code adheres to the repository's coding standards.
• [ ] Relevant documentation has been added or updated.
• [x] No new warnings or errors have been introduced.
• [x] SonarCloud issues have been reviewed and addressed.
• [ ] QA Passed

Testing Process

No tests are added yet.

Additional Notes

To build, you need to link the SDK from the opaque PoC PR.