roof_construction codes group by FORM (empirical: 1=Flat 98%, 4/5/8=
Pitched 88-99%, 3=dwelling-above 100% over 7,974 certs; 7/9=premises-
above per #1452), so the filter matches families — an exact-code filter
would wrongly drop pitched neighbours lodged as 5/8. Historic prefixes
map to the same families; roof rooms and thatch stay unconditioned.
Harness ladder replay and telemetry mirror the new filter.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Strip the pre-RdSAP-17 deprecation rider and alias the SAP-prefixed
forms before the code-table lookup. Raises the historic fuel resolution
rate from ~22% of pairs to ~92% of dump rows.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ingestion's lookup chain becomes: new EPC API -> historic backup by exact
UPRN -> plain prediction. A found record's stable attributes fill the
gaps Landlord Overrides left (overrides always win) and enrich the target
with age band / fuel / TFA band; the persisted predicted-slot row carries
source="expired". Reader unwired or shard miss -> behaviour unchanged.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>