Describe the bug

Opening a session from the History tab to view it (read only, no messages sent) modifies the session's "last used" timestamp, causing it to jump to the top of the history list.

To Reproduce
Steps to reproduce the behavior:

1. Go to the History tab
2. Note the order of sessions
3. Click on an older session to open it
4. Go back to the History tab
5. See that the session you just viewed has moved to the top of the list

Expected behavior
Opening a session to view it should not modify the session or change its position in the history order.

Screenshots
n/a

Please provide the following information

• OS & Arch: macOS
• Interface: UI (Goose Desktop)
• Version: v1.16.0
• Extensions enabled: N/A - not extension-related
• Provider & Model: N/A - not provider-related