Changes to Create a new aicall.

added the non-success response with the status 404

removed the gemini.gemini-2.0-flash enum value from the ai_engine_model response property for the response status 200

removed the gemini.gemini-2.5-flash enum value from the ai_engine_model response property for the response status 200

removed the gemini.gemini-2.5-pro enum value from the ai_engine_model response property for the response status 200

removed the gemini.gemini-pro-latest enum value from the ai_engine_model response property for the response status 200

removed the grok.grok-3 enum value from the ai_engine_model response property for the response status 200

removed the grok.grok-3-mini enum value from the ai_engine_model response property for the response status 200

removed the openai.gpt-5 enum value from the ai_engine_model response property for the response status 200

removed the openai.gpt-5-mini enum value from the ai_engine_model response property for the response status 200

removed the openai.gpt-5-nano enum value from the ai_engine_model response property for the response status 200

removed the openai.gpt-5.1 enum value from the ai_engine_model response property for the response status 200

removed the openai.gpt-5.2 enum value from the ai_engine_model response property for the response status 200

added the new contact_case enum value to the reference_type response property for the response status 200

added the new contact_case enum value to the request property reference_type

removed the enum value contact_case of the request property reference_type

removed the contact_case enum value from the reference_type response property for the response status 200