📋 JSON文件格式示例：
[
{
"account_id": "account_001",
"account_info": {
"nickname": "测试账号",
"uid": "123456789"
},
"mobile_prefix": "138",
"mobile_suffix": "8888",
"total_count": 10000,
"batch_size": 100
},
{
"account_id": "account_002",
"account_info": {
"nickname": "另一个账号",
"uid": "987654321"
},
"mobile_prefix": "139",
"mobile_suffix": "9999",
"total_count": 10000,
"batch_size": 100
}
]