- Added _is_detached flag to EmbeddedRDP (set in detach(), cleared in reattach()) - _monitor_tick() skips try_reembed() when window is intentionally detached - Prevents race condition: monitor tick no longer re-embeds fullscreen window - Added plans/test-rdp.md — RDP testing documentation - build.py auto-cleanup removed v1.8.31 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>