{
    "summary": [
        {
            "name": "engine_configs",
            "title": "引擎配置",
            "primary": ["id"]
        }
    ],
    "fields": [
        {"name": "id", "title": "ID", "type": "str", "length": 32},
        {"name": "org_id", "title": "机构ID", "type": "str", "length": 32, "nullable": "yes"},
        {"name": "engine_type", "title": "引擎类型", "type": "str", "length": 32},
        {"name": "engine_name", "title": "引擎名称", "type": "str", "length": 64},
        {"name": "endpoint_url", "title": "服务地址", "type": "str", "length": 255},
        {"name": "api_key", "title": "API密钥", "type": "str", "length": 255},
        {"name": "model_name", "title": "模型名称", "type": "str", "length": 128},
        {"name": "config_json", "title": "扩展配置JSON", "type": "text", "length": 4000},
        {"name": "is_default", "title": "是否默认", "type": "int", "default": 0},
        {"name": "priority", "title": "优先级", "type": "int", "default": 0},
        {"name": "status", "title": "状态", "type": "str", "length": 16, "default": "active"},
        {"name": "health_check_at", "title": "最近健康检查", "type": "datetime"},
        {"name": "created_at", "title": "创建时间", "type": "datetime"},
        {"name": "updated_at", "title": "更新时间", "type": "datetime"}
    ],
    "codes": [
        {"field": "engine_type", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='engine_type'"},
        {"field": "status", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='engine_status'"}
    ],
    "indexes": [
        {"name": "idx_eng_type", "idxtype": "index", "idxfields": ["engine_type", "is_default"]},
        {"name": "idx_eng_org", "idxtype": "index", "idxfields": ["org_id", "engine_type"]}
    ]
}