Regenerate textures at 48px (chars/walls), 96px floor, with an UnsharpMask to
counter the LANCZOS softening. Bump TILE to 48 so the whole world scales up and
sprites render bigger/crisper; scale movement + range constants x1.5 to keep the
same tiles-per-second feel, and collision bodies to 34px. Mechanics reverified.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>