[BUG] VSCode Extension steals focus from terminal when typing git commands

Description

When typing git commands in the integrated terminal (Cursor), the focus unexpectedly jumps to the Claude Code extension's prompt input box, interrupting the command being typed.

Steps to Reproduce

1. Open Cursor with the Claude Code extension panel visible
2. Open the integrated terminal
3. Start typing a git command (e.g. git status, git commit, etc.)
4. Focus jumps to the Claude Code prompt input mid-keystroke

Expected Behavior

Focus should remain in the terminal while typing commands.

Actual Behavior

Focus is stolen from the terminal and moves to the Claude Code extension's prompt input box, interrupting the git command being typed.

Frequency

Intermittent — does not happen every time, but frequently enough to disrupt workflow.

Environment

• Claude Code Extension: v2.1.96
• IDE: Cursor 3.0.13
• OS: macOS Tahoe 26.4

Notes

• The Claude Code panel is open/visible when the bug occurs
• Unclear whether this also happens with non-git commands
• Related but distinct from #32726 (which is about panel auto-revealing on output) — this issue is specifically about focus being stolen while actively typing in the terminal