Feat/patient status consultation queue

Proposed: feat(patient-status): add queue steps waiting and in_consultation

Description

This merge request adds two new patient status steps (waiting, in_consultation) to align with the frontend progress line. It extends the visit status enum and validation, syncs queue status transitions into patient visit status history (idempotent), and updates the patient status endpoint to include these values when applicable. Tests have been updated to cover the new statuses and queue flow.

Before	After

Related Issue(s)

Closes #59 (closed)