fix(task): restore task metadata contract and type fields in task types api

backend/plugins/domain/upload/task/cleanup.go

@@ -31,12 +31,16 @@ const (
 
 // SystemCleanupMeta represents the task metadata.
 var SystemCleanupMeta = contracts.TaskMetaDTO{
-	Name:        SystemCleanupTask,
-	DisplayName: "系统垃圾清理",
-	Description: "定期清理未使用上传文件、历史推送记录和过期任务执行日志",
-	Category:    "maintenance",
-	MaxRetry:    3,
-	Queue:       taskQueueDefault,
+	Type:         TaskTypeSystemCleanup,
+	AsynqTask:    SystemCleanupTask,
+	Name:         "系统垃圾清理",
+	DisplayName:  "系统垃圾清理",
+	Description:  "定期清理未使用上传文件、历史推送记录和过期任务执行日志",
+	Category:     "maintenance",
+	SupportsTime: false,
+	MaxRetry:     3,
+	Queue:        taskQueueDefault,
+	Retryable:    true,
 }
 
 // SystemCleanupHandler 系统定期垃圾清理异步任务处理器

backend/plugins/domain/upload/task/rebuild_stats.go

@@ -24,12 +24,16 @@ const (
 
 // RebuildUploadStatsMeta describes the upload stats rebuild task.
 var RebuildUploadStatsMeta = contracts.TaskMetaDTO{
-	Name:        RebuildUploadStatsTask,
-	DisplayName: "重算文件存储统计",
-	Description: "根据当前 w_uploads 活跃记录全量重建 w_upload_stats（总量、类型、分类、趋势）",
-	Category:    taskCategoryUpload,
-	MaxRetry:    3,
-	Queue:       taskQueueDefault,
+	Type:         TaskTypeRebuildUploadStats,
+	AsynqTask:    RebuildUploadStatsTask,
+	Name:         "重算文件存储统计",
+	DisplayName:  "重算文件存储统计",
+	Description:  "根据当前 w_uploads 活跃记录全量重建 w_upload_stats（总量、类型、分类、趋势）",
+	Category:     taskCategoryUpload,
+	SupportsTime: false,
+	MaxRetry:     2,
+	Queue:        taskQueueDefault,
+	Retryable:    true,
 }
 
 // RebuildUploadStatsHandler rebuilds incremental upload stats from active upload records.

backend/plugins/domain/upload/task/storage_migration.go

@@ -36,31 +36,25 @@ const (
 
 // StorageMigrationMeta describes the manually dispatchable migration task.
 var StorageMigrationMeta = contracts.TaskMetaDTO{
-	Name:        StorageMigrationTask,
-	DisplayName: "迁移文件存储",
-	Description: "将活动存储中的文件迁移到待切换的目标存储，迁移期间文件系统保持只读",
-	Category:    taskCategoryUpload,
-	MaxRetry:    3,
-	Queue:       taskQueueDefault,
+	Type:         TaskTypeStorageMigration,
+	AsynqTask:    StorageMigrationTask,
+	Name:         "迁移文件存储",
+	DisplayName:  "迁移文件存储",
+	Description:  "将活动存储中的文件迁移到待切换的目标存储，迁移期间文件系统保持只读",
+	Category:     taskCategoryUpload,
+	SupportsTime: false,
+	MaxRetry:     1,
+	Queue:        taskQueueDefault,
+	Retryable:    true,
 	Params: []contracts.TaskParamDTO{
 		{
 			Name:        "target",
+			Label:       "目标存储配置 (JSON)",
 			Type:        "text",
 			Required:    true,
+			Placeholder: `{"driver": "s3", "local": {"root": "."}, "s3": {"bucket": "my-bucket"}}`,
 			Description: "待迁移到的目标存储引擎完整配置 JSON 字符串",
 		},
-		{
-			Name:        "batch_size",
-			Type:        "number",
-			Required:    false,
-			Description: "每批扫描的文件数量（默认 100）",
-		},
-		{
-			Name:        "concurrency",
-			Type:        "number",
-			Required:    false,
-			Description: "并发迁移 worker 数量（默认 4）",
-		},
 	},
 }
 

backend/plugins/domain/upload/task/tasks.go

@@ -34,17 +34,23 @@ var warmImageCacheMu sync.Mutex
 
 // WarmImageCacheMeta represents the image cache warmup task metadata.
 var WarmImageCacheMeta = contracts.TaskMetaDTO{
-	Name:        WarmImageCacheTask,
-	DisplayName: "预热图片压缩缓存",
-	Description: "串行将文件管理中的图片转换为指定质量的 WebP 并写入永久缓存",
-	Category:    taskCategoryUpload,
-	MaxRetry:    3,
-	Queue:       taskQueueDefault,
+	Type:         TaskTypeWarmImageCache,
+	AsynqTask:    WarmImageCacheTask,
+	Name:         "预热图片压缩缓存",
+	DisplayName:  "预热图片压缩缓存",
+	Description:  "串行将文件管理中的图片转换为指定质量的 WebP 并写入永久缓存",
+	Category:     taskCategoryUpload,
+	SupportsTime: false,
+	MaxRetry:     1,
+	Queue:        taskQueueDefault,
+	Retryable:    true,
 	Params: []contracts.TaskParamDTO{
 		{
 			Name:        "quality",
+			Label:       "图片质量",
 			Type:        "string",
 			Required:    true,
+			Placeholder: "low / medium / high",
 			Description: "WebP 压缩质量，仅支持 low、medium、high",
 		},
 	},