Changes to List sessions

added the optional property error/details to the response with the 400 status

added the optional property error/details to the response with the 401 status

added the optional property error/details to the response with the 403 status

added the optional property error/details to the response with the 500 status

added the optional property error/sessionId to the response with the 400 status

added the optional property error/sessionId to the response with the 401 status

added the optional property error/sessionId to the response with the 403 status

added the optional property error/sessionId to the response with the 500 status

added the non-success response with the status 400

added the non-success response with the status 429

added the non-success response with the status 500

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

the response property sessions/items/executionStage became optional for the status 200

added the new agent enum value to the sessions/items/type response property for the response status 200

added the new agent_session enum value to the sessions/items/source response property for the response status 200

added the new mcp enum value to the sessions/items/source response property for the response status 200

added the new enum value agent to the query request parameter type

added the new enum value agent_session to the query request parameter source

added the new enum value mcp to the query request parameter source

added the optional property sessions/items/role to the response with the 200 status

endpoint added