修复db服，login业务逻辑bug，修复反序列化bug

common/serialization/serialization_test.go

@@ -1,9 +1,8 @@
-package model
+package serialization
 
 import (
 	"encoding/json"
 	"game/common/model/user"
-	"game/common/serialization"
 	"testing"
 )
 
@@ -13,7 +12,7 @@ func Test_zz(t *testing.T) {
 	_ = json.Unmarshal([]byte(zz), us)
 
 	var err error
-	us, err = serialization.MapStringToStruct[user.UserAccount](map[string]string{
+	us, err = MapStringToStruct[user.UserAccount](map[string]string{
 		"id": "17",
 	})
 	t.Log(err)