/clear <name> argument not shown in /resume picker

Description

When using /clear <name>, the name is stored internally in session metadata but is not displayed in the /resume picker. Instead, the resume list shows the first user message as the conversation label.

Steps to reproduce

1. Start a conversation and do some work
2. Run /clear My Custom Name
3. Start a new conversation
4. Run /resume
5. Look for "My Custom Name" in the list — it's not there. The session shows the first user message instead.

Expected behavior

The name passed to /clear should appear as the conversation label in the /resume picker, so users can find named conversations easily.

Actual behavior

The name is silently discarded from the UI. The only way to name a conversation visibly is Ctrl+R from the resume picker.

Suggestion

Display the /clear <name> argument as the conversation label in the /resume list, so users can organize and find their sessions by meaningful names.

Environment

• Claude Code v2.1.128
• macOS