🤖 feat: bucket sidebar workspaces by live state

[ibetitsmike]

What

• Group sidebar workspaces into Action Needed / Running / Done buckets while preserving Sections and parent→child threads.
• Keep the existing “Older than…” collapse UI, but only inside Done (applied per thread root).
• Add a bulk useWorkspaceSidebarStateMap() hook so bucketing can react to live state without per-item subscriptions.
• Remove RuntimeBadge from WorkspaceListItem (post-runtime-icon cleanup).

Why

This makes the workspace list easier to scan by surfacing items that need attention or are actively running at the top, without breaking existing drag/drop or thread grouping.

Validation

• make static-check

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: c35bfe8f9d

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[ibetitsmike]

@codex review

• Included incompatibleRuntime in getWorkspaceSidebarKey so sidebar buckets update when compatibility flips.
• Updated E2E sidebar selector to target [role="button"][data-workspace-id] (bucket headers add wrapper nodes).

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Swish!

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