Add clinical_supplement struct column to patient rows (BCR biotab data: patient/follow_ups/ntes/drugs/radiations/ablations/omfs sub-fields, per-project schema). Patients view now surfaces the same BCR data the tabular view exposes.
Schema cleanup: drop cdr_* + flat survival cols, add survival_derived struct (Liu et al. 2018 algorithm). Cards now share a single biospecimen-tree source of truth + new Survival endpoints section.
Rebuild dfi_event/dfi_time with BCR biotab Clinical Supplement integration (97% reduction in under-population vs Liu's CDR; agreement rate 77.2% -> 90.1% with 30-day time tolerance)
