Deterministic 2.5D obstacle horizon skyline sweeps integrated over May–Sept 13:00–19:00 solar trajectory grid (0.5m x 0.5m cells) engine (.svg, .png, .dxf, .pdf) built for SketchUp, Apple Maps, Garmin, SunCalc — zero-upload ephemeral Wasm RAM execution.
Running ephemeral Wasm verification…