feat: 完整游戏运维功能

platform/service/artifact_transfer_test.go

@@ -1,6 +1,7 @@
 package service
 
 import (
+	"bytes"
 	"strings"
 	"testing"
 
@@ -76,6 +77,11 @@ func TestCoreServiceArtifactTransferWorkflow(t *testing.T) {
 	if artifact.State != domain.ArtifactStateAvailable || artifact.Checksum != validator.BytesChecksum(payload) {
 		t.Fatalf("expected available artifact, got %+v", artifact)
 	}
+	delete(svc.artifactTransfers, opened.TransferID)
+	storedPayload, err := svc.artifactPayload("artifact-1")
+	if err != nil || !bytes.Equal(storedPayload, payload) {
+		t.Fatalf("expected completed upload payload to remain downloadable, payload=%q err=%v", storedPayload, err)
+	}
 }
 
 func TestCoreServiceRejectsInvalidArtifactTransferChunks(t *testing.T) {