Update curated snapshot (179 tables, 90,950,086 rows)

README: etf_holdings merged to 15,262 rows -> 96,981,484 total (configs unchanged)

etf_holdings: merge 08-02 fresh pull with 07-30/07-31 history (15,262 rows, 119 funds)

Update shipping_freight_ppi/shipping_freight_ppi.parquet: negative-price guard (prices) / fresh constituents + freight pulls

Update shipping_gscpi/shipping_gscpi.parquet: negative-price guard (prices) / fresh constituents + freight pulls

Update index_members/index_members.parquet: negative-price guard (prices) / fresh constituents + freight pulls

Update prices/prices.parquet: negative-price guard (prices) / fresh constituents + freight pulls

Declare 152 per-table configs in README YAML + fix usage example

Add open_meteo_weather table to curated snapshot

Add cfpb_complaints table to curated snapshot

Update curated snapshot (150 tables, 90,223,873 rows)

Update curated snapshot (148 tables, 59,291,129 rows)

Update curated snapshot (148 tables, 59,268,296 rows)

Update curated snapshot (148 tables, 12,801,530 rows)

Update curated snapshot (114 tables, 9,993,893 rows)

Update curated snapshot (114 tables, 9,995,770 rows)

initial commit