Allow deleting/renaming sessions in mobile app session list

Description

When using Remote Control (/remote-control) sessions repeatedly from the mobile app, past sessions accumulate in the session list with no way to delete or rename them.

Current behavior

• Completed remote sessions move to "Archived" but remain in the list permanently
• Sessions are auto-named (e.g., "Remote Control session") making them hard to distinguish
• There is no swipe-to-delete, edit button, or any other way to remove old sessions from the list
• Over time the list becomes cluttered and confusing

Screenshot

The session list looks like this after several remote sessions — multiple entries with identical names and no way to manage them:

• Remote Control session (nock-in-mook/Kanji-Stroke)
• Remote Control session (nock-in-mook/Kanji-Stroke)
• Remote Control session (nock-in-mook/Kanji-Stroke)
• ...

Expected behavior

• Ability to delete individual sessions from the list (e.g., swipe-to-delete or a context menu)
• Optionally, ability to rename sessions for easier identification

Environment

• Claude Code mobile app (iOS)
• Using /remote-control for remote sessions