!100 定时清理数据库备份数据

* feat: 优化数据库 BINLOG 同步机制
* feat: 删除数据库实例前需删除关联的数据库备份与恢复任务
* refactor: 重构数据库备份与恢复模块
* feat: 定时清理数据库备份历史和本地 Binlog 文件
* feat: 压缩数据库备份文件

server/internal/db/domain/entity/db_binlog.go

@@ -11,14 +11,16 @@ const (
 
 // BinlogFile is the metadata of the MySQL binlog file.
 type BinlogFile struct {
-	Name string
-	Size int64
+	Name       string
+	RemoteSize int64
+	LocalSize  int64
 
 	// Sequence is parsed from Name and is for the sorting purpose.
 	Sequence       int64
 	FirstEventTime time.Time
 	LastEventTime  time.Time
-	Downloaded     bool
+
+	Downloaded bool
 }
 
 var _ DbJob = (*DbBinlog)(nil)
@@ -76,10 +78,6 @@ func (b *DbBinlog) GetJobType() DbJobType {
 	return DbJobTypeBinlog
 }
 
-func (b *DbBinlog) SetLastStatus(status DbJobStatus, err error) {
-	b.setLastStatus(b.GetJobType(), status, err)
-}
-
 func (b *DbBinlog) GetKey() DbJobKey {
 	return b.getKey(b.GetJobType())
 }