Function requires_physiological_quarantine 

pub fn requires_physiological_quarantine(quin: &NQuin) -> bool

Nquin isolation guard: personal physiological / genomic data must be quarantined from public ontologies — processed as an abstract simulation, never aggregated or routed externally. Returns true iff the Quin carries content that must stay in a private subgraph (composes identify_degradation_vector plus explicit physiological predicates).