Patient's actual age now decides adult vs child prophylaxis instead of trusting literal "adult prophy"/"child prophy" wording in notes. Applies bidirectionally (corrects both D1110-on-a-child and D1120-on-an-adult) and also resolves ambiguous bare "prophy"/"cleaning" input purely from age. Wired into all single- and batch-claim chat flows. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>