Add SSO settings response model in proxy_setting_endpoints.py

- Introduced SSOSettingsResponse model to encapsulate SSO configuration values and schema information.
- Updated the get_sso_settings endpoint to utilize the new response model, enhancing API clarity and usability.

litellm/proxy/ui_crud_endpoints/proxy_setting_endpoints.py

@@ -1,5 +1,5 @@
 #### CRUD ENDPOINTS for UI Settings #####
-from typing import Any, List, Union
+from typing import Any, Dict, List, Union
 
 from fastapi import APIRouter, Depends, HTTPException
 
@@ -16,6 +16,16 @@ class IPAddress(BaseModel):
     ip: str
 
 
+class SSOSettingsResponse(BaseModel):
+    """Response model for SSO settings with values and schema information"""
+    
+    values: Dict[str, Any]
+    """The current SSO configuration values"""
+    
+    schema: Dict[str, Any]
+    """Schema information including descriptions and property types for UI display"""
+
+
 @router.get(
     "/get/allowed_ips",
     tags=["Budget & Spend Tracking"],
@@ -287,6 +297,7 @@ async def update_default_team_settings(settings: DefaultTeamSSOParams):
     "/get/sso_settings",
     tags=["SSO Settings"],
     dependencies=[Depends(user_api_key_auth)],
+    response_model=SSOSettingsResponse,
 )
 async def get_sso_settings():
     """