Cannot unarchive a session from the action panel

Description

After archiving a Claude Code session, there is no working way to unarchive it. The action panel does not offer an unarchive option, and the model-side session-management tools only expose archive_session (no unarchive_session). The docstring for archive_session states "the session can still be reopened later from the Archived list," but the path to do so from the UI is unclear or non-functional.

Steps to reproduce

1. Archive a session (via the session menu or the archive_session tool).
2. Try to unarchive it from the action panel.

Expected

An unarchive control is available, restoring the session to active state.

Actual

No unarchive control is reachable from the action panel.

Why this matters / use case

I archive conversations regularly to keep my active list clean. But sometimes a conversation needs to be picked back up — new input arrives, a follow-up is needed, the work isn't actually done. Without a simple unarchive flow, I either have to start a fresh conversation (losing context) or live with a cluttered active list because I'm afraid to archive.

Environment

• Platform: macOS (Darwin 24.6.0)
• Claude Code: 1.5354.0 (9a9e3d) — 2026-04-29T01:14:34.000Z