Ride + corridor showed no corridor: with a room present the viz plays on its screens (radio/window/wall), so a dark model viz on the Ride's dash radio is invisible, and the shared rig was filming it through the room camera grammar meant for another world (directCamera rooms now keep the subject grammar + viz framing). Battery pins switched to combos that visibly read (Chamber + Kaleido, Stage + Assembly); scenario text states the visibility rule so a dead pin can't hide again.
Collects every manual testing entry point into one library (src/debug/battery.js) rendered from the live registries: all 17 bank songs with app/+venue/strip links, all 70 scenes grouped by family with gate/wide links, all 3 venues, 9 curated param and scenario combos, and the graduated lab pages with their headless runners. debug.html renders it; new songs/scenes/venues join free.
Dejvino