Khalim Conn-Kowlessar f502db8c74 Slice 95: API mapper TFA from per-bp dims + window area 2dp rounding — cert 001479 to 1e-4 ... The end-to-end production cascade `from_api_response → cert_to_inputs → calculate_sap_from_inputs` now hits cert 001479's worksheet continuous SAP 69.0094 at abs < 1e-4 (was +0.000584). Two fixes: 1. API mapper: `from_rdsap_schema_21_0_{0,1}` computes `total_floor_ area_m2` as Σ per-bp `sap_floor_dimensions[*].total_floor_area.value` (cert 001479: 30.45+30.77+5.37+1.92 = 68.51), not the lodged scalar (rounded integer 69). `water_heating_from_cert` reads `epc.total_ floor_area_m2` directly for occupancy N (Appendix J), which propagates to HW kWh (+6.31 → ~0), Appendix L lighting (+0.98 → 0), and internal gains (+25.72 W·months → 0). 2. Cascade window area rounding per RdSAP 10 §15 "Rounding of data" (p.66): "All element areas (gross) including window areas: 2 d.p." `solar_gains.py` and `internal_gains.py` now round `w * h` to 2 d.p. to match the existing `heat_transmission.py` pattern (line 344). Closes the residual solar gains delta (+1.50 W·months → 0) that became dominant once TFA was fixed. Re-pinned 5 golden cert residuals where TFA + area rounding shifted output: 0240 (SAP -14→-15, PE +14.6650→+17.8450, CO2 +0.8060→+1.0097), 6035 (PE +48.2971→+49.5139, CO2 +1.1016→+1.1423), 8135 (PE -2.4194→ -2.4072, CO2 -0.0198→-0.0195), 2130 (PE -38.1521→-38.1666), 0390 (PE +1.6837→+1.6962, CO2 +0.0637→+0.0639). New test: `test_api_001479_full_chain_sap_matches_worksheet_pdf_ exactly` formalises Layer 4 of the validation stack as a 1e-4 gate. Pyright net-zero (mapper.py 33). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-26 09:30:41 +00:00
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epc	Slice 95: API mapper TFA from per-bp dims + window area 2dp rounding — cert 001479 to 1e-4	2026-05-26 09:30:41 +00:00
magicplan	typing and renaming 🟪	2026-05-07 13:26:49 +00:00
__init__.py	further breaking up code	2023-07-20 12:24:34 +01:00
datatypes.py	further breaking up code	2023-07-20 12:24:34 +01:00
enums.py	completed build of new demo portfolio - some fixed required still	2023-11-20 14:42:16 +00:00