[Bugs] Ive stored a proposed plan to a markdown file and commited.

**Mood:** 😊
**Category:** Bugs

Ive stored a proposed plan to a markdown file and commited. Now I want to start a cloud session for the implementation, but I receive "Failed to start cloud session".

---
| Field | Value |
| --- | --- |
| App version | 1.0.10 |
| OS | macOS 26.5.0 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 4 |

在 macOS 26.5.0 上使用应用版本 1.0.10，通过 /chat 路径复现该故障，并先将提议的计划提交到一个 Markdown 文件中。首先检查 cloud-session 启动日志以及 “Failed to start cloud session” 消息出现时的相关条件。会话成功启动，或该故障有明确且已记录的原因，即表示完成。

由索引模型根据 Issue 内容生成。