{
  "id": "m0008",
  "title": "llm_api_profile 补 path/headers 自含字段 + llm_model 补 query_profile_ids 后续步骤模板链（异步模型提交→查询→[下载]多步编排）",
  "backup_tables": ["llm_api_profile", "llm_model"],
  "up": [
    {"op": "sql", "sql": "ALTER TABLE llm_api_profile ADD COLUMN path VARCHAR(200) NULL COMMENT '请求路径(相对端点base_url,如/chat/completions)' AFTER capability"},
    {"op": "sql", "sql": "ALTER TABLE llm_api_profile ADD COLUMN headers TEXT NULL COMMENT '请求头(JSON,含认证头模板)' AFTER path"},
    {"op": "sql", "sql": "ALTER TABLE llm_model ADD COLUMN query_profile_ids TEXT NULL COMMENT '后续步骤模板链(JSON数组,异步模型提交后顺序执行:查询/下载)' AFTER profile_id"}
  ],
  "down": [
    {"op": "sql", "sql": "ALTER TABLE llm_api_profile DROP COLUMN path"},
    {"op": "sql", "sql": "ALTER TABLE llm_api_profile DROP COLUMN headers"},
    {"op": "sql", "sql": "ALTER TABLE llm_model DROP COLUMN query_profile_ids"}
  ]
}