{
    "summary": [
        {
            "name": "contract_milestones",
            "title": "合同里程碑管理表",
            "primary": "id",
            "catelog": "relation"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "里程碑ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "主键 - UUID格式"
        },
        {
            "name": "contract_id",
            "title": "合同ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的合同ID"
        },
        {
            "name": "milestone_name",
            "title": "里程碑名称",
            "type": "str",
            "length": 100,
            "nullable": "no",
            "comments": "里程碑名称，如'预付款到账'、'产品交付'、'验收完成'"
        },
        {
            "name": "milestone_type",
            "title": "里程碑类型",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "comments": "里程碑类型：payment=付款, delivery=交付, acceptance=验收"
        },
        {
            "name": "planned_date",
            "title": "计划日期",
            "type": "date",
            "nullable": "no",
            "comments": "计划完成日期"
        },
        {
            "name": "actual_date",
            "title": "实际日期",
            "type": "date",
            "nullable": "yes",
            "comments": "实际完成日期"
        },
        {
            "name": "amount",
            "title": "关联金额",
            "type": "decimal",
            "length": 15,
            "dec": 2,
            "nullable": "yes",
            "comments": "该里程碑关联的金额"
        },
        {
            "name": "status",
            "title": "状态",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "default": "pending",
            "comments": "状态：pending=待处理, completed=已完成, overdue=已逾期"
        },
        {
            "name": "description",
            "title": "描述",
            "type": "text",
            "nullable": "yes",
            "comments": "里程碑详细描述"
        },
        {
            "name": "created_at",
            "title": "创建时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "创建时间"
        },
        {
            "name": "updated_at",
            "title": "更新时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "最后更新时间"
        },
        {
            "name": "reminder_sent",
            "title": "提醒已发送",
            "type": "str",
            "length": 1,
            "nullable": "no",
            "default": "0",
            "comments": "逾期提醒是否已发送：1=是, 0=否"
        }
    ],
    "indexes": [
        {
            "name": "idx_milestones_contract",
            "idxtype": "index",
            "idxfields": ["contract_id"]
        },
        {
            "name": "idx_milestones_status",
            "idxtype": "index",
            "idxfields": ["status"]
        },
        {
            "name": "idx_milestones_planned",
            "idxtype": "index",
            "idxfields": ["planned_date"]
        }
    ]
}