Living-Room OLED Size, Neck-Ergonomics & Window-Glare Ray-Tracer

Deterministic THX/SMPTE horizontal FOV (30°–40°) + ISO 11226 seated cervical gaze angle (<=15° above horizon) + 2D specular reflection law theta_i = theta_r engine (.svg, .pdf, .json) built for LG OLED, Sony Bravia, Samsung QD-OLED, Sanus — zero-upload ephemeral Wasm RAM execution.

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