Fixes and Improvements:
- New "Dice So Nice: No Shadows" toggle in the Performance tab (Disable Heavy Modules), on by default. Dice So Nice 6's shadow pass can reset the GPU on some phones, which kills the map until reload.
- Swipe's Dice So Nice toggles now use DSN's own per-client settings. "Disable Dice So Nice" sets DSN visibility to "none" and "No Shadows" sets DSN shadow quality to "none", so Swipe's Performance tab and DSN's dialog always agree. Previous DSN values are remembered and restored when you uncheck, and changes made in DSN's dialog are reflected in Swipe on the next load.
- Balanced mode renders at native resolution on phones. The board no longer renders at full device pixel ratio on small screens; tablets keep high-DPI until Aggressive.
- iOS Safari Dice So Nice optimization now turns shadows off entirely instead of "low".
- Fixes: the "graphics memory ran out" overlay never appeared on first load (it only attached after a scene change); the GPU detection probe leaked a WebGL context for the life of the page.
Note: on the next load, mobile clients will have their Dice So Nice shadow quality set to "none". Tablet users who want shadows back can uncheck the toggle in Swipe's Performance tab or set shadows in DSN's own settings.