Add batch status API (#19679)

Currently the status of a completed or failed batch is held in the
memory, a simple restart will lose the status and the user will not
have any visibility of the job that was long running.

In addition to the metrics, add a new API that reads the batch status
from the drives. A batch job will be cleaned up three days after
completion.

Also add the batch type in the batch id, the reason is that the batch
job request is removed immediately when the job is finished, then we
do not know the type of batch job anymore, hence a difficulty to locate
the job report

cmd/batch-expire.go

@@ -514,7 +514,7 @@ func (r *BatchJobExpire) Start(ctx context.Context, api ObjectLayer, job BatchJo
 		JobType:   string(job.Type()),
 		StartTime: job.Started,
 	}
-	if err := ri.load(ctx, api, job); err != nil {
+	if err := ri.loadOrInit(ctx, api, job); err != nil {
 		return err
 	}