成功响应（200）：
{
"code": 200,
"msg": "success",
"data": {
"date": "2024-01-15",
"metals": [
{
"name": "今日金价",
"sell_price": "480.50",
"today_price": "479.80",
"high_price": "482.30",
"low_price": "478.50",
"unit": "元\/克",
"updated": "2024-01-15 14:30:00",
"updated_at": 1705300200000
},
{
"name": "黄金价格",
"sell_price": "480.50",
"today_price": "479.80",
"high_price": "482.30",
"low_price": "478.50",
"unit": "元\/克",
"updated": "2024-01-15 14:30:00",
"updated_at": 1705300200000
}
],
"stores": [
{
"brand": "周大福",
"product": "足金",
"price": "485",
"unit": "元\/克",
"formatted": "485元\/克",
"updated": "2024-01-15",
"updated_at": 1705251600000
}
],
"banks": [
{
"bank": "工商银行",
"product": "如意金条",
"price": "483",
"unit": "元\/克",
"formatted": "483元\/克",
"time": "14:30:00",
"updated": "2024-01-15 14:30:00",
"updated_at": 1705300200000
}
],
"recycle": [
{
"type": "足金回收",
"price": "465",
"unit": "元\/克",
"formatted": "465元\/克",
"purity": "99.9%",
"updated": "2024-01-15",
"updated_at": 1705251600000
}
]
}
}