fix: send mcp-protocol-version header in worktree registration test

Required for follow-up requests by the 2025-06-18 MCP HTTP transport
that effect beta.103 enforces.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
80d50f99a0Julius Marminge committed on 9/18/2026, 12:49:20 AM· committed by Julius Marmingeparent6a5be14
1 file changedLine totals unavailable