docs(readme): add issue/pr triage notes

Add a dedicated Issue/PR triage section to both English and Chinese READMEs, clarifying maintainer availability and that PRs are prioritized.

Author: tisfeng

README.md

@@ -56,6 +56,10 @@ If you're interested in this project, we welcome your contributions. Our develop
 
 Please submit bug fixes and features to dev branch; for major new features or UI changes, please open an issue for discussion first. See [full contribution guide](./docs/en/GUIDE.md#contributor-guide).
 
+## Issue/PR Triage Notes
+
+The maintainer has been quite busy recently and usually only has time to triage issues on weekends. PRs (especially bugfix PRs) are prioritized. Also, due to an overloaded inbox and notifications, some messages may not be seen or replied to promptly. Thanks for your understanding.
+
 ## Installation
 
 ### Homebrew Installation (Recommended)

README_ZH.md

@@ -56,6 +56,10 @@ Easydict 开箱即用，能自动识别输入文本语言，支持输入翻译
 
 Bug 修复和功能实现请提交到 dev 分支；新功能或大的 UI 变动建议先开 issue 讨论。详见[完整贡献指南](./docs/zh/GUIDE.md#贡献指南)。
 
+## Issue/PR 处理说明
+
+开发者近期比较忙，通常只有周末才有时间集中处理 issue。我们会优先处理 PR（尤其是修复类 PR）。同时邮件和通知积压较多，部分反馈可能无法第一时间看到或回复，敬请理解。
+
 ## 安装
 
 ### Homebrew 安装（推荐）