excel唯一逻辑修复

control-plane/src/task-service.ts

@@ -3652,6 +3652,8 @@ export class TaskService {
       if (!conversationId) {
         throw new TaskError('task_selection_required', '发送名单附件时必须指定 task_id 或 conversation_id。', 409);
       }
+      // A retry can update an abandoned task; creation time keeps the attachment
+      // paired with the user's latest roster instruction instead.
       result = await getPool(this.config).query(
         `SELECT t.id, t.task_id, t.business_route_id, t.status, t.channel_id,
                 s.conversation_id
@@ -3659,11 +3661,13 @@ export class TaskService {
            JOIN agent_sessions s ON s.task_id = t.id
           WHERE t.organization_id = $1
             AND t.status = 'awaiting_attachment'
+            AND t.business_route_id IN ('passenger_list_import_independent', 'passenger_list_import_shared_child')
             AND t.archived_at IS NULL
             AND s.conversation_id = $2
             AND ($3::uuid IS NULL OR t.channel_id = $3::uuid)
             AND ($4::boolean = false OR t.assigned_user_id = $5)
-          ORDER BY t.updated_at DESC`,
+          ORDER BY t.created_at DESC, t.id DESC
+          LIMIT 1`,
         [
           context.organizationId,
           conversationId,
@@ -3672,14 +3676,6 @@ export class TaskService {
           context.userId || null
         ]
       );
-      if ((result.rowCount ?? 0) > 1) {
-        throw new TaskError(
-          'task_selection_required',
-          '同一会话有多个等待名单附件的任务，请指定 task_id。',
-          409,
-          { task_ids: result.rows.map((row: Record<string, unknown>) => text(row.task_id)) }
-        );
-      }
       if (!result.rowCount) throw new TaskError('awaiting_attachment_task_not_found', '没有找到等待名单附件的任务。', 404);
     }
     const row = result.rows[0] as Record<string, unknown>;