[FEATURE] Desktop app: Save session history between restarts

[A2KAK]

问题

每次打开 OpenCode 桌面版，会话历史都会丢失，无法查看之前的对话。

期望行为

关闭桌面版后重新打开，能看到之前的会话记录，便于查找历史对话。

环境

• OS: Windows
• 版本: 桌面版（ai.opencode.desktop）

附加说明

已经有相关功能请求：

• [FEATURE] Persistent Session Memory #16077 Persistent Session Memory
• [FEATURE]: simpler history interaction and management #16355 simpler history interaction and management
• [FEATURE]:Save conversation history locally #19017 Save conversation history locally

希望桌面版也能实现类似功能，感谢！

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• Feature requests require a verification checkbox confirming you have searched for existing issues before submitting. This appears to be missing from the submitted template.

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

---

This issue might be a duplicate of existing issues. You've already referenced these — please check if one of them covers your request before proceeding:

• [FEATURE] Persistent Session Memory #16077: Persistent Session Memory
• [FEATURE]: simpler history interaction and management #16355: Simpler history interaction and management
• [FEATURE]:Save conversation history locally #19017: Save conversation history locally

If your request is already covered by one of the above, consider closing this issue and adding a 👍 or comment on the existing one instead.

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

This issue has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new issue that follows our issue templates.