Changes to Get API public v1 pulse trader by address demo

the response property summary/firstOpenedAt became nullable for the status 200

the response property summary/lastActivityAt became nullable for the status 200

the response property summary/maxDurationMs became nullable for the status 200

the response property summary/minDurationMs became nullable for the status 200

added the non-success response with the status 403

removed the non-success response with the status 401

added the optional property reason to the response with the 400 status

added the optional property reason to the response with the 422 status

added the optional property reason to the response with the 429 status

added the optional property reason to the response with the 500 status

added the optional property reason to the response with the 504 status

the response property summary/firstOpenedAt became required for the status 200

the response property summary/lastActivityAt became required for the status 200

the response property summary/maxDurationMs became required for the status 200

the response property summary/minDurationMs became required for the status 200

added the required property summary/coverage to the response with the 200 status

added the required property summary/openRealizedPnl to the response with the 200 status

added the required property summary/window to the response with the 200 status