Deeman 409dc4bfac feat(data): Phase 2b step 1 — expand stg_regional_income + Census income extractor ...

- stg_regional_income.sql: accept NUTS-1 (3-char) + NUTS-2 (4-char) codes;
  rename nuts1_code → nuts_code; add nuts_level column; NUTS-2 rows were
  already in the landing zone but discarded by LENGTH(geo_code) = 3
- scripts/download_gisco_nuts.py: one-time download of GISCO NUTS-2 boundary
  GeoJSON (NUTS_RG_20M_2021_4326_LEVL_2.geojson, ~5MB) to landing zone;
  uncompressed because ST_Read cannot read .gz files
- census_usa_income.py: new extractor for ACS B19013_001E state-level median
  household income; follows census_usa.py pattern; 51 states + DC
- all.py + pyproject.toml: register census_usa_income extractor

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-02-27 10:58:12 +01:00

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