API JSON + Summary PDF for cert 9501-3059-8202-7356-0204. RR/Mid-
terrace flat, 4 building storeys, TFA 113.08 m², mains gas boiler
(PCDB idx 19007), age band B. Worksheet target unrounded SAP
**68.5252**.
Second boiler cert per the per-cert mapper validation workflow:
Summary path proves itself against the worksheet (Layer 2 1e-4 pin),
then the API path catches up (Layer 4 1e-4 pin) — mirrors the cert
0330 cycle.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
