Use dependency_overrides for user_api_key_auth instead of relying on
uninitialized proxy globals. The auth dependency was crashing with 500
(instead of 401) and returning MagicMock user_id/team_id values that
broke json.dumps in _encode_realtime_token_payload.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Thread api_version through HTTP handlers to Azure realtime endpoints
- Make expires_at optional in RealtimeClientSecretResponse
- Fix test token expiry times to be in the future
- Populate user_id and team_id in minimal_auth for spend tracking
Made-with: Cursor
