Desktop app: Previous sessions not visible in sidebar after restart

Description

Previous Claude Code sessions are persisted on disk (.jsonl files exist in ~/.claude/projects/), but after restarting the laptop/app, the Sessions sidebar only shows the current session. Old sessions are not listed or browsable in the UI.

Steps to Reproduce

1. Open Claude Code desktop app (Code mode)
2. Have one or more sessions
3. Restart the laptop or quit and reopen the app
4. Check the Sessions sidebar — only the current session is shown

Expected Behavior

Previous sessions should appear in the Sessions sidebar after restart.

Workaround

claude --resume from the terminal works fine to access old sessions.

Environment

• Platform: macOS (Darwin 25.3.0)
• App: Claude Desktop (Code mode)