assistant2: Correctly display context files outside project worktrees (#27806)

We were displaying empty pills for files that weren't inside one of the
project worktrees

Release Notes:

- N/A
76c46c5babAgus Zubiaga committed on 3/31/2025, 8:32:24 PM· committed by GitHubparent8f0bacd
3 files changedLine totals unavailable