Changes to Stream objective events

added ObjectiveEventData_Reasoning to the data response property oneOf list for the response status 200

added reasoning discriminator mapping keys to the data response property for the response status 200

added the optional property startedAt to the response with the 200 status

added the optional property duration to the response with the 200 status

added ObjectiveEventData_UserMessage ObjectiveEventData_ToolApprovalRequested ObjectiveEventData_ToolApproved ObjectiveEventData_ToolDenied ObjectiveEventData_ToolCalled ObjectiveEventData_Error ObjectiveEventData_AssistantMessage ObjectiveEventData_ToolResult ObjectiveEventData_ToolError ObjectiveEventData_ContextWindowCompacted ObjectiveEventData_MemoryRead ObjectiveEventData_Cancelled ObjectiveEventData_SubAgentSpawned ObjectiveEventData_SubAgentUpdated ObjectiveEventData_Finalized ObjectiveEventData_Notice ObjectiveEventData_TimedOut to the data response property oneOf list for the response status 200

the data response's property type changed from object to no type for status 200

removed the optional property data/assistantMessage from the response with the 200 status

removed the optional property data/cancelled from the response with the 200 status

removed the optional property data/contextWindowCompacted from the response with the 200 status

removed the optional property data/error from the response with the 200 status

removed the optional property data/finalized from the response with the 200 status

removed the optional property data/memoryRead from the response with the 200 status

removed the optional property data/notice from the response with the 200 status

removed the optional property data/subAgentSpawned from the response with the 200 status

removed the optional property data/subAgentUpdated from the response with the 200 status

removed the optional property data/timedOut from the response with the 200 status

removed the optional property data/toolApprovalRequested from the response with the 200 status

removed the optional property data/toolApproved from the response with the 200 status

removed the optional property data/toolCalled from the response with the 200 status

removed the optional property data/toolDenied from the response with the 200 status

removed the optional property data/toolError from the response with the 200 status

removed the optional property data/toolResult from the response with the 200 status

removed the optional property data/type from the response with the 200 status

removed the optional property data/userMessage from the response with the 200 status

added discriminator to data response property for the response status 200

added the optional property data/timedOut to the response with the 200 status

added the optional property data/toolCalled/arguments to the response with the 200 status

added the optional property data/toolCalled/config to the response with the 200 status

added the optional property data/toolCalled/tool to the response with the 200 status

added the optional property data/notice to the response with the 200 status

endpoint added