{
  "summary": [
    {
      "table": "scene_import",
      "primary": ["id"],
      "engine": "InnoDB",
      "comment": "场景导入记录表（只读）"
    }
  ],
  "fields": [
    {"name": "id", "type": "str(32)", "nullable": false, "default": "", "comment": "主键"},
    {"name": "world_id", "type": "str(32)", "nullable": false, "default": "", "comment": "目标世界（逻辑关联 world.id）"},
    {"name": "file_name", "type": "str(255)", "nullable": false, "default": "", "comment": "导入文件名"},
    {"name": "total", "type": "int", "nullable": false, "default": 0, "comment": "总条数"},
    {"name": "success", "type": "int", "nullable": false, "default": 0, "comment": "成功条数"},
    {"name": "fail", "type": "int", "nullable": false, "default": 0, "comment": "失败条数"},
    {"name": "status", "type": "str(16)", "nullable": false, "default": "0", "comment": "导入状态（appcodes import_status，0 进行中/1 成功/2 失败）"},
    {"name": "created_at", "type": "timestamp", "nullable": false, "comment": "导入时间"}
  ],
  "indexes": [
    {"name": "idx_scene_import_world", "fields": ["world_id"], "unique": false}
  ],
  "codes": [
    {"field": "world_id", "table": "world", "valuefield": "id", "textfield": "name"},
    {"field": "status", "table": "appcodes_kv", "cond": "parentid='import_status'", "valuefield": "k", "textfield": "v"}
  ]
}