新增: TaskRecord加output_json产出字段+V17迁移(决策a AiNode自审闭环)

src-tauri/src/commands/task.rs

@@ -78,6 +78,7 @@ pub async fn create_task(
         workflow_def_id: None,
         base_branch: None,
         review_rounds: 0,
+        output_json: None,
         created_at: now.clone(),
         updated_at: now,
     };