完成用户名更新，粉丝数获取的基础功能

pkg/dao/model/changelog.go

@@ -0,0 +1,10 @@
+package model
+
+import "gorm.io/gorm"
+
+type Changelog struct {
+	gorm.Model
+	Operation string `gorm:"index;not null;default:''"`
+	Target    string `gorm:"index;not null;default:''"`
+	Result    string `gorm:"not null;default:''"`
+}

pkg/dao/model/fans.go

@@ -0,0 +1,13 @@
+package model
+
+import "gorm.io/gorm"
+
+type Fans struct {
+	gorm.Model
+	UID  uint `gorm:"index;not null"`
+	Fans uint `gorm:"index;not null;default:0"`
+}
+
+func (Fans) TableName() string {
+	return "fans"
+}

pkg/dao/model/furry.go

@@ -0,0 +1,12 @@
+package model
+
+type Furry struct {
+	ID     uint   `gorm:"primaryKey"`
+	UID    uint   `gorm:"uniqueIndex;not null"`
+	Name   string `gorm:"index;not null;default:''"`
+	Status int    `gorm:"index;not null;default:0"`
+}
+
+func (Furry) TableName() string {
+	return "furries"
+}