The Elmhurst §15.1 "Insulated: No Insulation" label was lodged but absent
from `_ELMHURST_CYLINDER_INSULATION_LABEL_TO_SAP10`, so
`_elmhurst_cylinder_insulation_code` raised UnmappedElmhurstLabel — blocking
the parse of every Solar PV example cert (the solar `before` lodges "No
Insulation"). An uninsulated cylinder has no insulation *type*, so per the
no-misleading-insulation convention it maps to `cylinder_insulation_type =
None` rather than naming a material; the lodged 0 mm thickness carries the
storage-loss signal the SAP 10.2 Table 2 dispatch needs.
Slice 1 of the Solar PV Recommendation Generator (ADR-0026).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Slice 3a. The inverse of Epc.from_sap_score: the minimum SAP rating in a
band (C → 69, B → 81, …), used as the Optimiser's repair target for an
INCREASING_EPC goal (goal_value "C" → target SAP 69). Keeps the
band-target derivation in the domain rather than re-coupling to
backend.app.utils.epc_to_sap_lower_bound. 8 tests incl. round-trip
through from_sap_score; pyright strict clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
