{
    "summary": [
        {
            "name": "customer_handover_items",
            "title": "客户交接项目明细表",
            "primary": "id",
            "catelog": "relation"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "项目ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "主键 - UUID格式"
        },
        {
            "name": "handover_id",
            "title": "交接ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的交接记录ID"
        },
        {
            "name": "item_type",
            "title": "项目类型",
            "type": "str",
            "length": 50,
            "nullable": "no",
            "comments": "交接项目类型：basic_info=基本信息, opportunities=未结商机, contracts=历史合同, service_tickets=服务工单, payment_issues=回款问题"
        },
        {
            "name": "item_id",
            "title": "关联ID",
            "type": "str",
            "length": 32,
            "nullable": "yes",
            "comments": "关联的具体记录ID（如商机ID、合同ID等）"
        },
        {
            "name": "item_description",
            "title": "项目描述",
            "type": "text",
            "nullable": "no",
            "comments": "项目详细描述或补充说明"
        },
        {
            "name": "is_completed",
            "title": "是否完成",
            "type": "str",
            "length": 1,
            "nullable": "no",
            "default": "0",
            "comments": "是否已完成交接：1=是, 0=否"
        },
        {
            "name": "created_at",
            "title": "创建时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "项目创建时间"
        },
        {
            "name": "updated_at",
            "title": "更新时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "最后更新时间"
        }
    ],
    "indexes": [
        {
            "name": "idx_handover_items_handover",
            "idxtype": "index",
            "idxfields": ["handover_id"]
        },
        {
            "name": "idx_handover_items_type",
            "idxtype": "index",
            "idxfields": ["item_type"]
        },
        {
            "name": "idx_handover_items_item_id",
            "idxtype": "index",
            "idxfields": ["item_id"]
        }
    ]
}