feat(middle): add middle worker function

pkg/middle/worker.go

@@ -11,6 +11,7 @@ func (m *MiddleWare) middleWorker() {
 	for _, singles := range m.plugins {
 		for _, single := range singles {
 			single.Exec(workEvent)
+
 		}
 	}
 

pkg/middle/worker_test.go

@@ -8,6 +8,7 @@ import (
 
 func TestWorker(t *testing.T) {
 	event := event.NewEvent("LogContext")
+
 	m := NewMiddleWare()
 	m.eventDriver.Put(event)