{
	"bsonType": "object",
	"required": [],
	"properties": {
		"_id": {
			"description": "记录ID，系统自动生成",
			"bsonType": "string"
		},
		"user_id": {
			"bsonType": "string",
			"title": "用户ID",
			"description": "关联 uni-id-users._id",
			"foreignKey": "uni-id-users._id"
		},
		"type": {
			"bsonType": "string",
			"title": "变动类型",
			"description": "earn=获得 spend=消耗",
			"enum": [
				{ "text": "获得", "value": "earn" },
				{ "text": "消耗", "value": "spend" }
			]
		},
		"amount": {
			"bsonType": "number",
			"title": "变动数量",
			"description": "正数为获得，负数为消耗"
		},
		"balance_after": {
			"bsonType": "number",
			"title": "变动后余额",
			"description": "本次变动后的积分余额"
		},
		"reason": {
			"bsonType": "string",
			"title": "变动原因",
			"description": "如：新用户赠送、积分充值、合同审查消耗",
			"trim": "both"
		},
		"biz_type": {
			"bsonType": "string",
			"title": "业务类型",
			"description": "关联的业务类型",
			"enum": [
				{ "text": "赠送", "value": "gift" },
				{ "text": "充值", "value": "recharge" },
				{ "text": "合同审查", "value": "contract_review" },
				{ "text": "签到", "value": "checkin" },
				{ "text": "其他", "value": "other" }
			]
		},
		"biz_id": {
			"bsonType": "string",
			"title": "业务ID",
			"description": "关联的业务记录ID（如订单ID）"
		},
		"_add_time": {
			"bsonType": "date",
			"title": "创建时间",
			"description": "记录创建时间，系统自动填充"
		}
	}
}