{
  "schema_version": "workflow/v1",
  "workflow_key": "entertainment-previous",
  "name": "客厅遥控：上一条",
  "description": "对短视频/推荐流页面按方向键上，切换上一条。",
  "variables": {},
  "settings": {"max_steps": 5, "default_timeout_ms": 15000, "on_unhandled_error": "pause_for_user", "return": {"node_id": "media"}},
  "nodes": [
    {"id": "start", "type": "flow.start", "title": "开始", "position": {"x": 80, "y": 160}, "params": {}, "inputs": {}},
    {"id": "media", "type": "media.control", "title": "上一条", "position": {"x": 340, "y": 160}, "params": {"action": "previous"}, "inputs": {}},
    {"id": "end", "type": "flow.end", "title": "结束", "position": {"x": 600, "y": 160}, "params": {}, "inputs": {}}
  ],
  "edges": [
    {"id": "start_to_media", "kind": "control", "source": "start", "source_port": "next", "target": "media", "target_port": "run"},
    {"id": "media_to_end", "kind": "control", "source": "media", "source_port": "success", "target": "end", "target_port": "run"}
  ]
}