Khalim Conn-Kowlessar 8942d45772 fix(fuel): price secondary dual-fuel/anthracite at their own rate, not the colliding LPG code (RdSAP 10 Table 32) ... The gov-API lodges secondary fuel as an enum whose value can COLLIDE with a different same-valued RdSAP 10 Table 32 / SAP 10.2 Table 12 fuel code: - enum 9 = "dual fuel (mineral and wood)" vs Table code 9 = LPG SC11F - enum 5 = "anthracite" vs Table code 5 = LPG (bulk) The main-fuel boundary already canonicalises these (`_GOV_API_COLLISION_ FUELS`), but the SECONDARY-heating cost + CO2/PE paths never did — they took the bare same-value lookup, so a dual-fuel room heater was priced as LPG (3.48 vs dual-fuel 3.99 p/kWh) and emitted as LPG (CO2 0.241 vs 0.087), and an anthracite secondary as bulk LPG (12.19 vs 3.64 p/kWh). The price under-count over-rates SAP; the CO2 over-count inflates emissions. Fix: add enum 9 to `_GOV_API_COLLISION_FUELS` (5 and 33 were already there) and canonicalise the secondary fuel code on both the cost (`_secondary_fuel_cost_gbp_per_kwh`) and factor (`_secondary_fuel_code`) paths, mirroring the main-fuel boundary. canonical_fuel_code only touches {5,9,33}, so genuinely Table-coded secondaries (House coal 11, wood logs 20, community fuels 30-32) are left unchanged — confirmed by a full-map audit. Corpus: within-0.5 69.7% -> 70.2% (MAE 0.854 -> 0.845; dual-fuel-secondary cohort 42.9% -> 49.0%, signed +0.55 -> +0.41) and CO2 MAE 0.12 -> 0.08 t/yr (bias +0.04 -> 0.00). Ratcheted the corpus floors (within 0.70, MAE 0.85, CO2 0.09, PE 4.0). A prior session deferred enum 9 ("direction not understood") while the EPC PE/CO2 lens was confounded by the climate-cascade bug (fc7c4d2d); on the corrected lens the over-rate direction is clear. pyright not installed in this codespace (strict gate not run locally). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>		2026-06-18 14:52:58 +00:00
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__init__.py	python upgraded due to enum	2026-06-12 15:47:28 +00:00
conftest.py	python upgraded due to enum	2026-06-12 15:47:28 +00:00
test_client.py	python upgraded due to enum	2026-06-12 15:47:28 +00:00
test_mapper_corpus.py	python upgraded due to enum	2026-06-12 15:47:28 +00:00
test_mapper_dispatcher.py	python upgraded due to enum	2026-06-12 15:47:28 +00:00
test_pv_battery_sap_neutrality.py	test(pv-battery): pin SAP cost-neutrality on export-capable standard tariff	2026-06-14 09:51:34 +00:00
test_sap_accuracy_corpus.py	fix(fuel): price secondary dual-fuel/anthracite at their own rate, not the colliding LPG code (RdSAP 10 Table 32)	2026-06-18 14:52:58 +00:00