fix(desktop): preserve state across Runtime Host reconnects

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。

[M4n5ter]

English

Summary

Prevent a replaced Runtime Host candidate from returning a late reconnectable-read result. The IPC router reuses its existing per-candidate handler identity as the connection fence and retries the read through the current candidate.

Desktop now distinguishes a real target change from a reconnect to the same target. Same-target reconnects retain Client-owned Session selection, composer drafts, attachments, and quotes while refreshing Host projections. Local-path actions in the titlebar, command palette, and Skills surface are hidden when the active target cannot expose Client paths; project identity remains visible.

Follow-up to #2834.

Verification

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 passed
• npm test -w @maka/ui — 113 passed
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• Electron smoke through agent-browser: the local project breadcrumb remained visible and actionable after making the action optional

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

简体中文

摘要

阻止已被替换的 Runtime Host candidate 返回延迟完成的可重连读取结果。IPC router 直接复用现有的 candidate handler 身份作为连接 fence，并通过当前 candidate 重新执行读取。

Desktop 现在会区分真正的目标切换和同一目标的重连。同目标重连会保留 Client 侧的 Session 选择、输入草稿、附件和引用，同时刷新 Host 投影。当当前目标无法暴露 Client 路径时，标题栏、命令面板和 Skills 页面会隐藏本地路径操作，但仍保留项目身份展示。

这是 #2834 的跟进修复。

验证

• npm run lint
• npm run format:check
• npm run build
• npm run typecheck
• npm test -w @maka/desktop — 761 项通过
• npm test -w @maka/ui — 113 项通过
• npx knip --workspace apps/desktop
• npx knip --workspace packages/ui
• 使用 agent-browser 完成 Electron smoke：将打开动作改为可选后，本地项目 breadcrumb 仍正常显示且可操作

检查清单

• 测试覆盖该变更，并会在缺少修复时失败
• lint、format、typecheck 与受影响测试套件均在本地通过

这个 PR 是否改变行为？

• 是 — 已在上方摘要说明
• 否

AI disclosure: Codex materially assisted with the implementation, validation, and this draft description; M4n5ter remains the contributor of record.

[M4n5ter]

English

I have manually reviewed and confirmed the fixes included in this PR, including the follow-up that prevents a replaced Runtime Host candidate from returning either a late result or a late ordinary failure. The resulting reconnect behavior and command no-replay boundary match the intended design.

简体中文

我已人工审查并确认本 PR 所包含的修复，包括后续补充的修复：被替换的 Runtime Host candidate 不会再返回迟到结果或迟到的普通异常。最终的重连行为以及 command 不重放的边界符合预期设计。