Model/domain/modelling/scoring
Khalim Conn-Kowlessar 2413bc87da feat(modelling): solid-fuel(coal)->gas boiler upgrade + boiler_flue_type end-state
Pin the coal-boiler-with-cylinder upgrade and add the `boiler_flue_type`
end-state field. A solid-fuel (coal) boiler (fuel 11, SAP code 153) on a
mains-gas street converts to a gas condensing boiler (fuel 11->26, code 102) —
the non-gas->gas path for a solid-fuel system, eligible because code 153 is in
the wet-boiler solid-fuel range 151-161 and mains gas is present.

New `boiler_flue_type` HeatingOverlay field, routed to main_heating_details[0]
and set to 2 (room-sealed/balanced) on both boiler shapes: every relodged after
lodges flue type 2, but coal's before lodged none. The field is SAP-inert (the
cascade score is unchanged by it), so it is written purely for end-state
fidelity — the overlay now represents the installed condensing boiler's flue.
Validated via the overlay-equality unit tests.

The coal after predates the user-locked "always add a cylinder thermostat when
absent" rule, so it stale-lodged thermostat 'N'; the pin corrects it to the
rule's end-state 'Y' in-test (the gas with-cylinder after got the same
correction by re-lodging). The cylinder is already 80 mm insulated, so the
jacket is skipped and only the thermostat is added; controls (2106) are
unchanged. Cascade-pinned delta 0 (SAP/CO2/PE).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-10 08:27:07 +00:00
..
__init__.py refactor(modelling): group domain/modelling into generators/scoring/optimisation 2026-06-03 13:48:36 +00:00
overlay_applicator.py feat(modelling): solid-fuel(coal)->gas boiler upgrade + boiler_flue_type end-state 2026-06-10 08:27:07 +00:00
package_scorer.py feat(modelling): Score carries the scored SapResult for billing 2026-06-03 17:20:45 +00:00
scoring.py refactor(modelling): expose cascade_scores for the role-3 + bill cascade 2026-06-03 17:54:54 +00:00