pub const VALID_ENTITY_TYPES: &[&str];Expand description
Valid entity types per schema. Single source of truth shared by the validator
and the vela finding add CLI; do not duplicate.
v0.10 added domain-neutral entries — particle, instrument, dataset,
quantity — surfaced by the first non-bio frontier on the public hub
(Nakamura’s dark-matter constraints). The biology-leaning entries remain
for back-compat; the additions widen expressiveness without churn.