Desktop (Windows): composer loses keyboard focus when switching session tabs

Description

In OpenCode Desktop on Windows, the prompt composer loses keyboard focus whenever I switch between open session tabs. After returning to a tab, keystrokes go nowhere until I click into the composer manually.

This makes multi-session workflows painful: every tab switch costs an extra mouse click before typing is possible.

Related reports:

• #40866 — Desktop input fields lose focus (dialog form fields; different UI area)
• #44243 — my feature request that Escape focus the prompt input field; this bug is part of why such a recovery shortcut matters
• #30887 — my earlier request for the same Esc-to-focus behavior, closed as not planned

Steps to reproduce

1. Open OpenCode Desktop on Windows.
2. Open two or more sessions so multiple session tabs exist.
3. Type in the composer of one tab.
4. Switch to another tab and then back again.
5. Observe that the composer does not have keyboard focus; typed characters are not entered anywhere.

Expected behavior

The composer regains keyboard focus automatically when returning to a session tab.

Actual behavior

Focus is dropped on tab switch; manual mouse click into the composer is required before typing works again.

Environment

• App: OpenCode Desktop 1.18.21
• OS: Microsoft Windows 11 Education, 25H2, build 26200.8875