Ben Stull
f5d8a4f96b
The engine already models Dark/Light as the two poles of one signed axis (tone = (light - dark)/4, equal = neutral), so the simulator now exposes a single bipolar Mood dial (-4 dark .. 0 neutral .. +4 light) that maps onto dark/light in controls(). Removes the Calibration section entirely: mood_gain and overlay_gain were always-locked 1.0 dev knobs (full dial = full effect), so they bake in as the DEFAULT_CALIBRATION constants and the sim sends no calibration. Experience panel is now just Left, Right, Mood. Engine/tests unchanged (DEFAULT_CALIBRATION already carries the 1.0 constants). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>