fix: 移除 Dockerfile 明文 OPENCODE_SERVER_PASSWORD，改用 HF Secrets 注入

feat: Dataset 改为有改动即同步(inotify)；支持 XDG_DATA_HOME 直接接外部存储

fix: OPENCODE_DATASET_REPO 支持填完整 URL，自动解析为 repo_id

feat: 使用 HF Dataset 做持久化（spaces-storage#dataset-storage）

fix: 彻底移除 /data 与 XDG 相关逻辑，恢复默认数据目录以修复发消息失败

fix: 恢复直接 CMD 启动并按 HF 文档写持久化说明

Update Dockerfile to support persistent storage configuration for OpenCode, allowing data retention when the /data directory is writable. Enhance README.md with details on current storage limitations and alternative solutions for data persistence on Hugging Face Spaces.

Update README.md with detailed usage instructions and configuration options for OpenCode on Hugging Face Spaces

initial commit