Release v6.9.5

Release v6.9.5 (#16575)

## Summary by Sourcery

重构多 Copilot 阶段导航逻辑，并调整配置变更的日志级别。

增强内容：
- 将 `MultiCopilotTaskPlugin` 中的阶段导航逻辑提取为可复用的 `navigate_to_stage`
辅助函数，以集中管理 OCR 设置和任务执行。
- 将配置更新的日志级别从 debug 提升为 information，使变更在日志中更加醒目可见。

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<summary>Original summary in English</summary>

## Summary by Sourcery

Refactor multi-copilot stage navigation and adjust configuration change
logging level.

Enhancements:
- Extract stage navigation logic in MultiCopilotTaskPlugin into a
reusable navigate_to_stage helper to centralize OCR setup and task
execution.
- Increase the log level for configuration updates from debug to
information to make changes more visible in logs.

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