Changes to Alert Chat Investigation

added the new optional request property agent_profile

added the new chat_channel_join_auto_trigger enum value to the request property trigger_type

added the new chat_dm enum value to the request property trigger_type

added the new chat_investigate_command enum value to the request property trigger_type

added the new chat_mention enum value to the request property trigger_type

added the new chat_message_auto_trigger enum value to the request property trigger_type

added the new ultra enum value to the request property thinking_mode/anyOf[subschema #1: ThinkingMode]

added the new alert_event_critical_severity_investigate enum value to the request property trigger_type

added the new ensemble_member enum value to the request property trigger_type

added the required property system_chat_id to the response with the 200 status

added the new autoresearch enum value to the request property trigger_type