* test: add failing tests for SSO user not added to Entra-synced teams bug
Adds tests reproducing the bug where new SSO users with teams=None
(from NewUserResponse) are not added to Entra ID synced teams because
add_missing_team_member() returns early when teams is None.
Tests demonstrate:
- NewUserResponse with teams=None fails to add user to teams (bug)
- LiteLLM_UserTable with teams=[] correctly adds user to teams (control)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* fix: treat None as empty list in add_missing_team_member for new SSO users
Fixed bug where new SSO users logging in via Microsoft SSO were not added
to their Entra-synced teams. The issue was an early return when
user_info.teams is None (default for NewUserResponse). Now treats None
as an empty list so new users are properly added to all their SSO teams.
Location: litellm/proxy/management_endpoints/ui_sso.py:438-440
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
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