fix(web): restore sidebar v2 thread actions and terminal icon

[Noojuno]

What Changed

• Show the active-terminal status indicator on sidebar v2 card and slim thread rows, with the running process count in the existing thread-details tooltip.
• Restore Copy path and Copy branch to the sidebar v2 thread context menu.

Why

Sidebar v2 had regressed functionality available in v1: users could no longer see when a thread had an active terminal or copy a thread's workspace path and branch from its context menu.

UI Changes

The existing terminal status treatment is now rendered in sidebar v2, with the running process count included in the thread-details tooltip. The terminal icon remains a status indicator instead of opening a second tooltip, and the context menu includes sentence-case Copy path and Copy branch actions.

Verified locally in the live web app:

• Active terminal status appears and clears with terminal processes.
• The thread-details tooltip reports singular and plural running-process counts.
• The terminal icon does not open a separate tooltip.
• Copy actions write the exact workspace path and branch.
• The v2 menu renders Copy path and Copy branch.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• Video is not applicable; this change adds no animation

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Note

Low Risk
UI-only parity work in the sidebar: reuses existing terminal-session and clipboard utilities with no auth, data, or server contract changes.

Overview
Brings sidebar v2 back in line with v1 for two missing affordances.

Running terminals: Each thread row subscribes to useThreadRunningTerminalIds and maps that through the shared terminalStatusFromRunningIds helper. When processes are running, a terminal icon (with optional pulse) appears on card and slim rows; the existing thread-details tooltip also lists how many terminal processes are running. The icon is status-only (no extra tooltip).

Context menu: Thread right-click menus gain Copy path (worktree path, else project workspace root, with an error toast if missing) and Copy branch when the thread has a branch. Clipboard hooks are split into path vs branch copy with matching success toasts; project-settings path copy uses the renamed path helper.

^{Reviewed by Cursor Bugbot for commit ef03e7a. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Restore thread context menu actions and terminal status indicators in SidebarV2

• Adds 'Copy path' and 'Copy branch' context menu items to sidebar thread rows, copying the respective values to the clipboard with success/error toasts.
• Thread rows now display a colored terminal status icon (with pulse animation when active) when terminal processes are running for that thread.
• The thread tooltip is extended to show a terminal icon and a 'N terminal process(es) running' label when applicable.

^{Macroscope summarized ef03e7a.}

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[macroscopeapp]

Approvability

Verdict: Approved

This PR restores missing sidebar UI functionality - terminal status icons and copy path/branch context menu actions. Changes are self-contained, use existing state/utilities, and present minimal runtime risk.

^{You can customize Macroscope's approvability policy. Learn more.}

Dismissing prior approval to re-evaluate d71af87

[juliusmarminge]

terminal icon should be left of PR badge no? feels like that would cause less shifting UI

[Noojuno]

@juliusmarminge good call, done