fix(proxy): only treat a missing user as no memberships on team list, surface db errors

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

litellm/proxy/management_endpoints/team_endpoints.py

@@ -76,6 +76,7 @@ from litellm.proxy._types import (
 )
 from litellm.proxy.auth.auth_checks import (
     OrganizationNotFoundError,
+    UserNotFoundError,
     _cache_team_object,
     allowed_route_check_inside_route,
     can_org_access_model,
@@ -4873,7 +4874,7 @@ async def _get_user_team_ids_from_db(
             proxy_logging_obj=proxy_logging_obj,
             check_db_only=True,
         )
-    except ValueError:
+    except UserNotFoundError:
         return ()
     return tuple(user.teams or ()) if user is not None else ()
 

tests/test_litellm/proxy/management_endpoints/test_team_endpoints.py

@@ -4204,6 +4204,10 @@ async def test_list_team_v2_org_admin_own_query_keeps_memberships_in_other_orgs(
         where={"user_id": "org_admin_user"}, include={"organization_memberships": True}
     )
 
+    prisma_client.db.litellm_usertable.find_unique.side_effect = RuntimeError("db down")
+    with pytest.raises(ValueError, match="db down"):
+        await list_teams("org_admin_user")
+
 
 @pytest.mark.asyncio
 async def test_list_team_v1_org_admin_own_query_keeps_memberships_in_other_orgs():