feat: 完整游戏运维功能

platform/service/artifact_download.go

@@ -1,6 +1,7 @@
 package service
 
 import (
+	"errors"
 	"fmt"
 	"net/url"
 	"sort"
@@ -8,10 +9,11 @@ import (
 	"time"
 
 	"browser.local/platform/domain"
+	"browser.local/platform/repo"
 	"browser.local/platform/validator"
 )
 
-const artifactDownloadStorageBehavior = "platform-memory-transfer-session"
+const artifactDownloadStorageBehavior = "platform-durable-artifact-store"
 
 func (svc *CoreService) GetArtifactForSession(sessionID string, artifactID string) (domain.Artifact, error) {
 	artifact, err := svc.store.Artifacts().Get(strings.TrimSpace(artifactID))
@@ -160,6 +162,12 @@ func (svc *CoreService) artifactPayload(artifactID string) ([]byte, error) {
 	if payload, exists := svc.artifactPayloads[artifactID]; exists {
 		return domain.CopyBytes(payload), nil
 	}
+	if payload, err := svc.artifactStore.GetPayload(artifactID); err == nil {
+		svc.artifactPayloads[artifactID] = domain.CopyBytes(payload)
+		return payload, nil
+	} else if !errors.Is(err, repo.ErrNotFound) {
+		return nil, err
+	}
 
 	sessions := make([]domain.ArtifactTransferSession, 0, len(svc.artifactTransfers))
 	for _, session := range svc.artifactTransfers {
@@ -183,6 +191,10 @@ func (svc *CoreService) artifactPayload(artifactID string) ([]byte, error) {
 	if int64(len(payload)) != session.SizeBytes {
 		return nil, validationError("artifact content size does not match transfer")
 	}
+	if err := svc.artifactStore.PutPayload(artifactID, payload); err != nil {
+		return nil, err
+	}
+	svc.artifactPayloads[artifactID] = domain.CopyBytes(payload)
 	return payload, nil
 }