3 commits

Author	SHA1	Message	Date
Khalim Conn-Kowlessar	6e9f831296	chore(epc-prediction): grow validation corpus to 150 postcodes ... Bumps N_POSTCODES 40 -> 150 for the fetch script. Larger corpus (150 postcodes / 3719 certs) reduces leave-one-out variance and unblocks the recency-template work (#1223), which regressed the noisier 36-target gate fixture. Corpus itself stays out of git (gitignored /tmp + persistent backup at /workspaces/home/epc_prediction_corpus_backup). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-15 06:42:19 +00:00
Khalim Conn-Kowlessar	c3d56b00dd	chore(epc-prediction): grow validation corpus to 40 postcodes (ADR-0029) ... Bump N_POSTCODES 150 -> 40 as the gradual-growth step from the 3-postcode smoke. 40 postcodes / 1113 certs / 578 leave-one-out predictions is enough for stable, trustworthy metrics (the smoke's 2 usable postcodes were dominated by oddball flats — floor_area mean|.| 52.6 there vs 12.7 here). Resumable + reproducible (random.seed(2026)); raise again to scale up. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-14 01:52:44 +00:00
Khalim Conn-Kowlessar	80b525f0f4	feat(epc-prediction): postcode-clustered corpus fetch script (ADR-0029) ... Builds the frozen validation corpus: samples postcodes from the register, then caches each postcode's full cohort of raw cert payloads (the shape from_api_response consumes), grouped by postcode, resumably. Reads the token from backend/.env; cache dir /tmp/epc_prediction_corpus (EPC_PREDICTION_CORPUS override). IO plumbing, not test-driven. Pairs with the leave-one-out harness. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-13 23:36:19 +00:00