Displayed-quality estimate q = Q·e of one registry child (leaf or whole
subtree), for the layers-panel / data-monitor readouts — null when the
dataset carries no quality stamps (or nothing is committed yet). Q is the
static measured level quality (level_stats.quality), e the
commit-time energy fraction; groups aggregate w-weighted over visible
non-empty leaves. Display-only: the gate's hold rule reads energy, not
this.
Displayed-quality estimate q = Q·e of one registry child (leaf or whole subtree), for the layers-panel / data-monitor readouts —
nullwhen the dataset carries no quality stamps (or nothing is committed yet). Q is the static measured level quality (level_stats.quality), e the commit-time energy fraction; groups aggregate w-weighted over visible non-empty leaves. Display-only: the gate's hold rule readsenergy, not this.