feat: channel email is done

common/constants.go

@@ -75,6 +75,7 @@ var (
 var RateLimitKeyExpirationDuration = 20 * time.Minute
 
 const (
-	UserStatusEnabled  = 1 // don't use 0, 0 is the default value!
-	UserStatusDisabled = 2 // also don't use 0
+	UserStatusNonExisted = 0
+	UserStatusEnabled    = 1 // don't use 0, 0 is the default value!
+	UserStatusDisabled   = 2 // also don't use 0
 )

common/email.go

@@ -1,6 +1,8 @@
 package common
 
-import "gopkg.in/gomail.v2"
+import (
+	"gopkg.in/gomail.v2"
+)
 
 func SendEmail(subject string, receiver string, content string) error {
 	m := gomail.NewMessage()