Upload files to Govilo and generate unlock links via Bot API. Use when: (1) Creating a Govilo unlock link from a ZIP, folder, or individual files, (2) Automating file upload to Govilo R2 storage with presigned URLs, (3) Managing Govilo Bot API interactions (presign → upload → create item). Requires GOVILO_API_KEY and SELLER_ADDRESS env vars. If missing, guides user to register at https://govilo.xyz/.

通过 Bot API 将文件上传至 Govilo 并生成解锁链接。适用场景：(1) 从 ZIP 压缩包、文件夹或单个文件创建 Govilo 解锁链接，(2) 使用预签名 URL 自动上传文件至 Govilo R2 存储，(3) 管理 Govilo Bot API 交互流程（预签名 → 上传 → 创建项目）。需设置 GOVILO_API_KEY 和 SELLER_ADDRESS 环境变量，若缺失将引导用户前往 https://govilo.xyz/ 注册。