Pi v0.59.0 - 更新日志

### 新功能 - 通过首次使用时懒加载 `@mariozechner/pi-ai` 提供商 SDK 而非导入时加载，实现更快的启动速度 ([#2297](https://github.com/badlogic/pi-mono/issues/2297)) - 当提供商将错误消息作为响应返回时，改进了提供商的重试行为 ([#2264](https://github.com/badlogic/pi-mono/issues/2264)) - 通过 OSC 133 命令执行标记，改进了终端集成 ([#2242](https://github.com/badlogic/pi-mono/issues/2242)) - 针对使用 reftable 存储的仓库，改进了 Git 页脚分支检测 ([#2300](https://github.com/badlogic/pi-mono/issues/2300)) ### 不兼容变更 - 更改了自定义工具系统提示词的行为：扩展和 SDK 工具仅在提供 `promptSnippet` 时才会被包含在默认的 `可用工具` 部分中。若省略 `promptSnippet`，该工具将不再包含在该部分中，而是直接排除（不再回退使用 `description`） ([#2285](https://github.com/badlogic/pi-mono/issues/2285)) ### 已更改 - 懒加载内置的 `@mariozechner/pi-ai` 提供商模块及根提供商包装器，使 coding-agent 启动时不再在首次使用前急切加载提供商 SDK ([#2297](https://github.com/badlogic/pi-mono/issues/2297)) ### 已修复 - 修复了 `/tree`、压缩和分支摘要中的会话标题处理逻辑，使空标题能正确清除渲染，且 `session_info` 条目不会混入摘要中 ([#2304](https://github.com/badlogic/pi-mono/pull/2304) by [@aliou](https://github.com/aliou)) - 修复了使用 reftable 存储的 Git 仓库的页脚分支检测，确保分支名称仍能在页脚中正确显示 ([#2300](https://github.com/badlogic/pi-mono/issues/2300)) - 修复了渲染后的用户消息，使其在命令输出后正确发出 OSC 133 命令执行标记，从而提升终端提示符集成效果 ([#2242](https://github.com/badlogic/pi-mono/issues/2242)) - 修复了提供商重试处理逻辑，将提供商返回的错误消息视为可重试的失败，而非成功响应 ([#2264](https://github.com/badlogic/pi-mono/issues/2264)) - 修复了捆绑模型元数据中 Claude 4.6 的上下文窗口覆盖设置，使 coding-agent 在重建生成的目录后能正确识别预期的模型限制 ([#2286](https://github.com/badlogic/pi-mono/issues/2286))

### New Features - Faster startup by lazy-loading `@mariozechner/pi-ai` provider SDKs on first use instead of import time ([#2297](https://github.com/badlogic/pi-mono/issues/2297)) - Better provider retry behavior when providers return error messages as responses ([#2264](https://github.com/badlogic/pi-mono/issues/2264)) - Better terminal integration via OSC 133 command-executed markers ([#2242](https://github.com/badlogic/pi-mono/issues/2242)) - Better Git footer branch detection for repositories using reftable storage ([#2300](https://github.com/badlogic/pi-mono/issues/2300)) ### Breaking Changes - Changed custom tool system prompt behavior so extension and SDK tools are included in the default `Available tools` section only when they provide `promptSnippet`. Omitting `promptSnippet` now leaves the tool out of that section instead of falling back to `description` ([#2285](https://github.com/badlogic/pi-mono/issues/2285)) ### Changed - Lazy-load built-in `@mariozechner/pi-ai` provider modules and root provider wrappers so coding-agent startup no longer eagerly loads provider SDKs before first use ([#2297](https://github.com/badlogic/pi-mono/issues/2297)) ### Fixed - Fixed session title handling in `/tree`, compaction, and branch summarization so empty title clears render correctly and `session_info` entries stay out of summaries ([#2304](https://github.com/badlogic/pi-mono/pull/2304) by [@aliou](https://github.com/aliou)) - Fixed footer branch detection for Git repositories using reftable storage so branch names still appear correctly in the footer ([#2300](https://github.com/badlogic/pi-mono/issues/2300)) - Fixed rendered user messages to emit an OSC 133 command-executed marker after command output, improving terminal prompt integration ([#2242](https://github.com/badlogic/pi-mono/issues/2242)) - Fixed provider retry handling to treat provider-returned error messages as retryable failures instead of successful responses ([#2264](https://github.com/badlogic/pi-mono/issues/2264)) - Fixed Claude 4.6 context window overrides in bundled model metadata so coding-agent sees the intended model limits after generated catalogs are rebuilt ([#2286](https://github.com/badlogic/pi-mono/issues/2286))