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以 OpenAI 文生图 API 为例，解析生成请求与图片下载为什么必须是两个独立重试状态机：关键差异在计费语义——一个是未确认态可能重复扣费，一个是已付费的幂等免费操作。
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- 924 字 · 5 min read
从独立开发者视角，系统梳理建站全链路数据安全实践：Cloudflare 隧道架构、开发阶段单测与静态扫描、API 六维防护、渗透测试验证、灰度发布与回滚、二阶安全兜底。