feat(storage): 统一二进制对象存储与公开错误

新增 Aliyun OSS 与 S3 协议、通道内重试和按优先级跨通道切换，保留 server-main 兼容与环境 OSS 内存通道。

将请求及结果中的 Base64、Data URI、Buffer、multipart 和内联二进制统一对象化，生产路径不再写入本机静态目录，历史本地资源仅保留只读兼容。

引入 PublicErrorV1 并统一 API、异步查询、兼容协议和失败回调的安全错误输出，同时补充迁移、管理端、指标、OpenAPI 与本地模拟验收。

验证：go test ./... -count=1；go vet ./...；pnpm lint；pnpm test；pnpm build；pnpm openapi；tests/ci/migrations-test.sh。

apps/api/internal/store/task_history.go

@@ -13,17 +13,20 @@ const (
 )
 
 type TaskCallbackDelivery struct {
-	ID          string
-	TaskID      string
-	EventID     string
-	Seq         int64
-	CallbackURL string
-	Status      string
-	Attempts    int
-	LockToken   string
-	EventType   string
-	TaskStatus  string
-	CreatedAt   time.Time
+	ID               string
+	TaskID           string
+	EventID          string
+	Seq              int64
+	CallbackURL      string
+	Status           string
+	Attempts         int
+	LockToken        string
+	EventType        string
+	TaskStatus       string
+	TaskRequestID    string
+	TaskErrorCode    string
+	TaskErrorMessage string
+	CreatedAt        time.Time
 }
 
 type TaskHistoryCleanupResult struct {
@@ -67,9 +70,13 @@ func (s *Store) ClaimTaskCallbacks(ctx context.Context, workerID string, limit i
 	}
 	rows, err := s.pool.Query(ctx, `
 WITH picked AS (
-  SELECT outbox.id, event.event_type, COALESCE(event.status, '') AS task_status, event.created_at
+  SELECT outbox.id, event.event_type, COALESCE(event.status, '') AS task_status, event.created_at,
+         COALESCE(task.request_id, '') AS task_request_id,
+         COALESCE(task.error_code, '') AS task_error_code,
+         COALESCE(task.error_message, task.error, '') AS task_error_message
   FROM gateway_task_callback_outbox outbox
   JOIN gateway_task_events event ON event.id = outbox.event_id
+  JOIN gateway_tasks task ON task.id = outbox.task_id
   WHERE outbox.created_at >= COALESCE((
       SELECT applied_at
       FROM schema_migrations
@@ -101,7 +108,7 @@ WHERE outbox.id = picked.id
 RETURNING outbox.id::text, outbox.task_id::text, COALESCE(outbox.event_id::text, ''),
           outbox.seq, outbox.callback_url, outbox.status, outbox.attempts,
           COALESCE(outbox.lock_token::text, ''), picked.event_type, picked.task_status,
-          picked.created_at`,
+          picked.created_at, picked.task_request_id, picked.task_error_code, picked.task_error_message`,
 		workerID, limit, int(staleAfter/time.Second))
 	if err != nil {
 		return nil, err
@@ -122,6 +129,9 @@ RETURNING outbox.id::text, outbox.task_id::text, COALESCE(outbox.event_id::text,
 			&item.EventType,
 			&item.TaskStatus,
 			&item.CreatedAt,
+			&item.TaskRequestID,
+			&item.TaskErrorCode,
+			&item.TaskErrorMessage,
 		); err != nil {
 			return nil, err
 		}