Fix SCUM file list capability fallback

platform/service/server_files.go

@@ -150,6 +150,22 @@ func (svc *CoreService) RefreshServerFileListForSession(sessionID string, reques
 	if err != nil {
 		return domain.ServerFileListResult{}, err
 	}
+	endpoint, err := svc.GetRunEndpoint(ctx.Instance.RunEndpointID)
+	if err != nil {
+		return domain.ServerFileListResult{}, err
+	}
+	entries := filterServerFileEntries(serverFileEntriesFromDeclaredWorkspace(ctx.Workspace, request.DirectoryKey), request.Query)
+	if !containsString(endpoint.Capabilities, domain.JobCapabilityFilesList) {
+		return domain.CopyServerFileListResult(domain.ServerFileListResult{
+			ServerInstanceID: ctx.Instance.ID,
+			PluginID:         ctx.Plugin.ID,
+			DirectoryKey:     request.DirectoryKey,
+			Path:             request.Path,
+			State:            "ready",
+			Entries:          entries,
+			Reason:           "当前 Run 未声明 files.list，已展示插件声明的逻辑文件。",
+		}), nil
+	}
 	job, err := svc.CreateJob(domain.Job{
 		ID:               jobIDFromParts("job-file-list", request.ServerInstanceID, request.IdempotencyKey),
 		ServerInstanceID: ctx.Instance.ID,
@@ -169,7 +185,6 @@ func (svc *CoreService) RefreshServerFileListForSession(sessionID string, reques
 	if err != nil {
 		return domain.ServerFileListResult{}, err
 	}
-	entries := filterServerFileEntries(serverFileEntriesFromDeclaredWorkspace(ctx.Workspace, request.DirectoryKey), request.Query)
 	return domain.CopyServerFileListResult(domain.ServerFileListResult{ServerInstanceID: ctx.Instance.ID, PluginID: ctx.Plugin.ID, DirectoryKey: request.DirectoryKey, Path: request.Path, State: "pending", Entries: entries, Job: job, Reason: "目录刷新任务已派发到 Run。"}), nil
 }
 
@@ -365,7 +380,14 @@ func (svc *CoreService) serverFileContextForSession(sessionID string, serverInst
 	return serverFileContext{User: user, Instance: instance, Plugin: plugin, Directory: directory, Workspace: workspace, Scope: svc.runtimeProfileScope(instance.ID)}, nil
 }
 
-func effectiveServerFileWorkspace(_ domain.GamePlugin) domain.PluginFileWorkspace {
+func effectiveServerFileWorkspace(plugin domain.GamePlugin) domain.PluginFileWorkspace {
+	workspace := domain.CopyPluginFileWorkspace(plugin.FileWorkspace)
+	if serverFileWorkspaceIsPluginDeclared(workspace) {
+		if workspace.DefaultDirectoryKey == "" && len(workspace.Directories) > 0 {
+			workspace.DefaultDirectoryKey = workspace.Directories[0].Key
+		}
+		return workspace
+	}
 	return domain.PluginFileWorkspace{DefaultDirectoryKey: serverFileDefaultDirectoryKey, Directories: []domain.PluginLogicalDirectory{{Key: serverFileDefaultDirectoryKey, Label: "服务器根目录", Scope: "config"}}, Files: []domain.PluginLogicalFile{}, ConfigFields: []domain.PluginConfigField{}}
 }