fix: v0.1.19 — валидация VisibilityTimeout/WaitTimeSeconds/пустой MessageBody, fix hardcore_test LONG_Q length

app/models/errors.go

@@ -22,6 +22,8 @@ func init() {
 		"ValidationError": {HttpError: http.StatusBadRequest, Type: "ValidationError", Code: "AWS.SimpleQueueService.ValidationError", Message: "The input fails to satisfy the constraints specified by an AWS service."},
 		// LimitExceeded — превышен лимит очередей тенанта (max_queues)
 		"LimitExceeded": {HttpError: http.StatusBadRequest, Type: "LimitExceeded", Code: "AWS.SimpleQueueService.LimitExceeded", Message: "You've reached the limit on the number of queues."},
+		// MissingParameter — обязательный параметр отсутствует (например, пустой MessageBody)
+		"MissingParameter": {HttpError: http.StatusBadRequest, Type: "MissingParameter", Code: "MissingParameter", Message: "The request must contain the parameter MessageBody."},
 	}
 	SnsErrors = map[string]SnsErrorType{
 		"InvalidParameterValue":        {HttpError: http.StatusBadRequest, Type: "InvalidParameterValue", Code: "AWS.SimpleNotificationService.InvalidParameterValue", Message: "An invalid or out-of-range value was supplied for the input parameter."},