{
    "summary": [
        {
            "name": "bid_cost_benefit",
            "title": "投标成本收益分析表（分析维度4;m0006建表未进models,2026-09-10归籍;写入方bid_analysis_capability.py;定义逐列对齐活表）",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "主键ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "project_id", "title": "项目ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "kind", "title": "行类型(item=单项/summary=结论)", "type": "str", "length": 16, "nullable": "no", "default": "item"},
        {"name": "category", "title": "类别(cost/benefit)", "type": "str", "length": 16, "nullable": "no", "default": "cost"},
        {"name": "item_name", "title": "条目名称", "type": "str", "length": 250, "nullable": "no"},
        {"name": "amount", "title": "金额(万元)", "type": "double", "length": 14, "dec": 2, "nullable": "yes"},
        {"name": "amount_note", "title": "金额说明", "type": "str", "length": 200, "nullable": "yes"},
        {"name": "basis", "title": "计算依据", "type": "text", "nullable": "yes"},
        {"name": "confidence", "title": "置信度(high/medium/low)", "type": "str", "length": 16, "nullable": "yes", "default": "medium"},
        {"name": "source_ref", "title": "数据来源引用", "type": "str", "length": 480, "nullable": "yes"},
        {"name": "order_no", "title": "显示排序", "type": "int", "nullable": "yes", "default": "0"},
        {"name": "created_at", "title": "创建时间", "type": "timestamp", "nullable": "no"},
        {"name": "updated_at", "title": "更新时间(写入方显式NOW();新机无ON UPDATE,平台约定)", "type": "timestamp", "nullable": "no"}
    ],
    "indexes": [
        {"name": "idx_project", "idxtype": "index", "idxfields": ["project_id"]}
    ]
}