Create: Pipes'n Physics

# New Physics - Fluid viscosity: lava and other thick fluids flow slower through pipes. Lava has ~2.5x more friction than water. Configurable via viscosityScaling (set to 0 to disable) - Siphon effect: pumps can push fluid over hills. The pump only needs enough power to reach the peak — the descent is free - Flow splitting: when pipes branch, flow divides proportionally. A junction feeding two tanks splits the flow 50/50 instead of duplicating it # Goggle Improvements - Fluid density and viscosity shown in the tooltip (e.g. 3000 kg/m³ · 6000 cP) - Viscosity penalty displayed when flowing thick fluids (e.g. 2.5x friction) - All pipes in a straight line now show the same flow rate — no more flickering between different values - Remaining range decreases as you look further from the source - Cleaner numbers throughout # Bug Fixes - Fixed cauldron drain/fill not working with open-ended pipes - Fixed flow rate jumping around every few ticks when tanks are draining - Fixed crash during chunk generation with Sable tank mass - Fixed pump range arrows not showing past siphon peaks