The firmware's per-control value row never shows driver-integrated values
for relative encoders (stuck at 0 — probe H5 unresolved); PLN chose one
coherent fast overlay over 29 firmware-drawn fictions. Overlay-only mode
(promoted from --oled-overlay fallback to default) draws every knob on the
global 0x36 target with bring-up-after-write; --oled-native restores the
old firmware-drawn mode.