🍽 3D Feeding Intolerance Residual Volume Simulator

This 3D companion keeps the exact clinical framing of the 2D version — gastric residual volume (GRV) as one data point among several, not an automatic stand-alone trigger — but renders it around an orbitable schematic torso instead of a flat scrollytelling canvas. Dragging the gastric residual volume slider fills a translucent 3D stomach and drives its matching graduated syringe on an NG aspiration line; the feeding-rate slider drives a green particle flow along a separate line from a feeding bag into the stomach, which stops the instant feeding is held. Toggling "other intolerance signs" fades in a 3D distension ring, a pain marker and a vomiting marker beside the stomach. A small 3D decision tree lights its "Continue" or "Hold" node live, and a row of 3D bars compares an old isolated-GRV-threshold protocol against a modern combined-criteria protocol — switching between them changes which hold rule actually drives the scene, showing directly why isolated-threshold protocols under-deliver nutrition relative to combined-criteria assessment.