## What's Changed

### 新增
- 新增 Agent 会话停止能力，并优化 stop 请求处理流程，支持 /stop 指令终止 Agent 运行并尽量不丢失已运行输出的结果。 ([#5380](https://github.com/AstrBotDevs/AstrBot/issues/5380))。
- 新增 SubAgent 交接场景下的 computer-use 工具支持 ([#5399](https://github.com/AstrBotDevs/AstrBot/issues/5399))。
- 新增 Agent 执行过程中展示工具调用结果的能力，提升执行过程可观测性 ([#5388](https://github.com/AstrBotDevs/AstrBot/issues/5388))。
- 新增插件加载/卸载 Hook，扩展插件生命周期能力 ([#5331](https://github.com/AstrBotDevs/AstrBot/issues/5331))。
- 新增插件加载失败后的热重载能力，提升插件开发与恢复效率 ([#5334](https://github.com/AstrBotDevs/AstrBot/issues/5334))。
- 新增 SubAgent 图片 URL/本地路径输入支持 ([#5348](https://github.com/AstrBotDevs/AstrBot/issues/5348))。
- 新增 Dashboard 发布跳转基础 URL 可配置项 ([#5330](https://github.com/AstrBotDevs/AstrBot/issues/5330))。

### 修复
- 修复 Tavily 请求的硬编码 6 秒超时。
- 修复 OneBot v11 适配器关闭之后仍然在连接的问题([#5412](https://github.com/AstrBotDevs/AstrBot/issues/5412))。
- 修复上下文会话中平台缺失时的日志处理，补充 warning 并改进排查信息。
- 修复 embedding 维度未透传到 provider API 的问题 ([#5411](https://github.com/AstrBotDevs/AstrBot/issues/5411))。
- 修复 File 组件处理逻辑并增强 OneBot 驱动层路径兼容性 ([#5391](https://github.com/AstrBotDevs/AstrBot/issues/5391))。
- 修复 sandbox 文件传输工具缺少管理员权限校验的问题 ([#5402](https://github.com/AstrBotDevs/AstrBot/issues/5402))。
- 修复 pipeline 与 `from ... import *` 引发的循环依赖问题 ([#5353](https://github.com/AstrBotDevs/AstrBot/issues/5353))。
- 修复配置文件存在 UTF-8 BOM 时的解析问题 ([#5376](https://github.com/AstrBotDevs/AstrBot/issues/5376))。
- 修复 ChatUI 复制回滚路径缺失与错误提示不清晰的问题 ([#5352](https://github.com/AstrBotDevs/AstrBot/issues/5352))。
- 修复保留插件目录处理逻辑，避免插件目录行为异常 ([#5369](https://github.com/AstrBotDevs/AstrBot/issues/5369))。
- 修复 ChatUI 文件消息段无法持久化的问题 ([#5386](https://github.com/AstrBotDevs/AstrBot/issues/5386))。
- 修复 `.dockerignore` 误排除 `changelogs` 目录的问题。
- 修复 aiohttp 版本过新导致 qq-botpy 报错的问题 ([#5316](https://github.com/AstrBotDevs/AstrBot/issues/5316))。

### 优化
- 完成 SubAgent 编排页面国际化，补齐多语言支持 ([#5400](https://github.com/AstrBotDevs/AstrBot/issues/5400))。
- 增补消息事件处理相关测试，并完善测试框架的 fixtures/mocks 覆盖 ([#5355](https://github.com/AstrBotDevs/AstrBot/issues/5355), [#5354](https://github.com/AstrBotDevs/AstrBot/issues/5354))。

## What's Changed (EN)

### New Features
- Added computer-use tools support in sub-agent handoff scenarios ([#5399](https://github.com/AstrBotDevs/AstrBot/issues/5399)).
- Added support for displaying tool call results during agent execution for better observability ([#5388](https://github.com/AstrBotDevs/AstrBot/issues/5388)).
- Added plugin load/unload hooks to extend plugin lifecycle capabilities ([#5331](https://github.com/AstrBotDevs/AstrBot/issues/5331)).
- Added hot reload support when plugin loading fails, improving recovery during plugin development ([#5334](https://github.com/AstrBotDevs/AstrBot/issues/5334)).
- Added image URL/local path input support for sub-agents ([#5348](https://github.com/AstrBotDevs/AstrBot/issues/5348)).
- Added stop control for active agent sessions and improved stop request handling ([#5380](https://github.com/AstrBotDevs/AstrBot/issues/5380)).
- Added configurable base URL for dashboard release redirects ([#5330](https://github.com/AstrBotDevs/AstrBot/issues/5330)).

### Fixes
- Fixed logging behavior when platform information is missing in context sessions, with clearer warning and diagnostics.
- Fixed missing embedding dimensions being passed to provider APIs ([#5411](https://github.com/AstrBotDevs/AstrBot/issues/5411)).
- Fixed shutdown stability issues in the aiocqhttp adapter ([#5412](https://github.com/AstrBotDevs/AstrBot/issues/5412)).
- Fixed File component handling and improved path compatibility in the OneBot driver layer ([#5391](https://github.com/AstrBotDevs/AstrBot/issues/5391)).
- Fixed missing admin guard for sandbox file transfer tools ([#5402](https://github.com/AstrBotDevs/AstrBot/issues/5402)).
- Fixed circular import issues related to pipeline and `from ... import *` usage ([#5353](https://github.com/AstrBotDevs/AstrBot/issues/5353)).
- Fixed config parsing issues when files contain UTF-8 BOM ([#5376](https://github.com/AstrBotDevs/AstrBot/issues/5376)).
- Fixed missing copy rollback path and unclear error messaging in ChatUI ([#5352](https://github.com/AstrBotDevs/AstrBot/issues/5352)).
- Fixed reserved plugin directory handling to avoid abnormal plugin path behavior ([#5369](https://github.com/AstrBotDevs/AstrBot/issues/5369)).
- Fixed ChatUI file segment persistence issues ([#5386](https://github.com/AstrBotDevs/AstrBot/issues/5386)).
- Fixed accidental exclusion of the `changelogs` directory in `.dockerignore`.
- Fixed compatibility issues caused by a hard-coded 6-second timeout in Tavily requests.
- Fixed qq-botpy runtime errors caused by overly new aiohttp versions ([#5316](https://github.com/AstrBotDevs/AstrBot/issues/5316)).

### Improvements
- Completed internationalization for the sub-agent orchestration page ([#5400](https://github.com/AstrBotDevs/AstrBot/issues/5400)).
- Added broader message-event test coverage and improved fixtures/mocks in the test framework ([#5355](https://github.com/AstrBotDevs/AstrBot/issues/5355), [#5354](https://github.com/AstrBotDevs/AstrBot/issues/5354)).
- Updated README content and applied repository-wide formatting cleanup (ruff format) ([#5375](https://github.com/AstrBotDevs/AstrBot/issues/5375)).