shot_input.sh launches the app under Xvfb and drives it with xdotool,
then screenshots for pixel-diff verification. Adds click/drag/rdrag
pseudo-actions that insert the frame gap raylib's button edge-detection
needs (a bare xdotool "click 1" is too fast and no-ops). Documents the
settled-capture timing (12s) and the 1280x800 viewport/sidebar bounds.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
