fix(web): show worktree icon in sidebar v2

[tris203]

Problem

Sidebar v2 shows the branch name without Sidebar v1’s worktree indicator, so users cannot tell whether a thread targets a worktree or a plain ref.

Fix

Reuse the existing worktree indicator beside the Sidebar v2 branch label. Worktree threads now show the folder/git icon and its existing accessible tooltip; ref-only threads remain text-only.

Before / after

Before	After

.

Verification

• Web typecheck
• Web unit tests (1,995 tests)
• Formatter and diff checks
• Integrated web pass with ref-only and worktree fixtures

Implemented with GPT-5.6-sol via the Codex harness.

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Note

Low Risk
Small UI parity change reusing an existing component with no auth, data, or API impact.

Overview
Sidebar v2 now matches v1 for worktree threads: the shared ThreadWorktreeIndicator is rendered next to the branch label on card rows when a branch is present.

Worktree threads get the existing folder/git icon and tooltip; ref-only threads stay unchanged (the indicator renders nothing without worktreePath).

^{Reviewed by Cursor Bugbot for commit 97c128f. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Show worktree indicator before branch label in sidebar thread rows

Adds ThreadWorktreeIndicator before the branch name in each sidebar thread row when a branch exists. The branch display changes from a single <span> to a fragment containing the indicator and the branch span.

^{Macroscope summarized 97c128f.}

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[macroscopeapp]

Approvability

Verdict: Approved 97c128f

Simple UI change that imports and displays an existing ThreadWorktreeIndicator component next to branch names in the sidebar. No new logic or runtime behavior changes introduced.

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