Khalim Conn-Kowlessar a0d9d09410 Handover: 4 cert-001479 slices in (54-57); gap at +7.62 SAP; non-fabric next ... Update NEXT_AGENT_PROMPT.md with current branch state for cert 001479 work. Slices 54-57 closed Elmhurst-side mapper gaps surfaced by the cross-mapper diff against the new GOV.UK API counterpart: 54: extensions_count from len(survey.extensions) 55: party-wall code "CU" → cavity unfilled U=0.5 56: floor "E To external air" → u_exposed_floor (Table 20) 57: PS sloping-ceiling + As Built + pre-1950 → thickness=0 → U=2.30 Per-bp fabric U-values all match worksheet exactly now. Cascade SAP went 63.17 → 61.39 (gap widened to +7.62) as each fix exposed previously-masked over-counting elsewhere; per-data-correct moves. Remaining ~15 W/K HLC gap (HLP cascade 2.235 vs worksheet 3.127) lives in non-fabric: living_area_fraction TFA convention, internal gains, secondary heating SAP-code wiring, possibly thermal bridging and ventilation HLC. Documents one source-data caveat: Summary §3 says Ext1 age "M 2023 onwards", worksheet header says "Ext1: L" — assessor inconsistency; trust Summary per session policy. 758 cohort tests + cert-001479 structural pins green; pyright net-zero on touched files. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-24 22:41:24 +00:00
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adr	docs: handover for Table 3c two-profile combi loss → close 4 Elmhurst fixtures	2026-05-22 12:14:00 +00:00
sap-spec	Handover: 4 cert-001479 slices in (54-57); gap at +7.62 SAP; non-fabric next	2026-05-24 22:41:24 +00:00