fix(client): restore Electron chat rooms navigation

[NWYLZW]

Summary

• Restore the existing Chat Rooms navigation entry in packaged Electron compatibility workspaces served at /ui/.
• Use the plugin runtime endpoint role as the workspace authority instead of inferring ownership from /w/:workspaceId in the browser URL.
• Keep manager and launcher runtimes excluded without adding Electron-specific branches or changing route, command, layout, or style ownership.

Changelog

• Changelog path or "Not applicable": changelog/1.0.0-rc.6/client.md

Screenshots

Behavior-only restoration of an existing native NavRail item; no new visual primitive, layout, or CSS. Independent packaged Electron validation confirmed exactly one 团队群聊 entry in the compatibility /ui/ workspace, native spacing/theme/selected state, and successful click-through to the existing room UI.

Validation

• pnpm exec vitest run --workspace vitest.workspace.ts --project node packages/plugins/channel-oneworks/__tests__/oneworks-channel-plugin.test.ts (4/4)
• pnpm --filter @oneworks/plugin-channel-oneworks typecheck
• Exact-path ESLint and dprint checks
• git diff --check
• pnpm --filter @oneworks/plugin-channel-oneworks build:client
• pnpm desktop:package
• pnpm -C apps/desktop smoke:package
• Independent packaged Electron behavior and visual review: compatibility URL /ui/, runtime role workspace, one visible Chat Rooms entry, route click-through and room UI render PASS

Review Scope

• Risk: low
• Applicable profiles: Electron workspace plugin runtime; client plugin activation; behavior and visual consistency
• Evidence: exact-diff local/global review PASS; independent real packaged Electron behavior/visual review PASS
• Rule exceptions: none

Experience Review

• 已判断是否需要沉淀经验
• 如需要，已运行 $post-task-experience-review（本次稳定运行时角色约束已写入模块 AGENTS.md 并随精确差异独立复核）
• reviewer PASS / NOT APPLICABLE 后才进入 merge

Experience Review Result: PASS — the reusable compatibility-path invariant is captured in the nearest module guidance and the exact documentation/code change passed independent review.

Policy Conflict Review

Not applicable; this PR does not change workflow, permission, or release-rule documentation.

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Project	Deployment	Actions	Updated (UTC)
oneworks-dev	Ready	Preview	Aug 21, 2026 4:17am

[github-actions]

Experience Review

Before merge, make sure the PR body contains this completed checklist:

## Experience Review
- [x] 已判断是否需要沉淀经验
- [x] 如需要，已运行 `$post-task-experience-review`
- [x] reviewer `PASS` / `NOT APPLICABLE` 后才进入 merge

Checklist to confirm:

• Decide whether this PR produced reusable project experience.
• If experience should be captured, run $post-task-experience-review.
• Merge only after the independent reviewer reports PASS or NOT APPLICABLE for the Experience Review Result.
• For workflow, permission, or release-rule documentation changes, also add this checked section to the PR body after an independent read-only conflict review:

## Policy Conflict Review
- [x] Independent read-only reviewer checked workflow, permission, and release-rule conflicts and reported PASS