UI shows merged PRs as pending work items (false positives in suggested work view)

Description

Claude Code's suggested work / inbox view displays merged pull requests as if they are open and require attention. This creates false positives that look like pending work.

Steps to reproduce

1. Have one or more merged PRs in connected GitHub repositories
2. Open Claude Code
3. Observe that merged PRs appear in the work suggestions / inbox UI with no indication they are already merged

Expected behavior

Only open, unmerged PRs should appear as suggested work items. Merged PRs should be excluded.

Actual behavior

Merged PRs appear alongside open ones, indistinguishable from actual pending work. The UI shows repo name, PR number, and branch name but no merged/closed status indicator.

Context

• Confirmed via gh pr view that all displayed PRs had state: MERGED
• The branches had also already been deleted
• Claude Code version: current (2026-05-17)
• Platform: macOS