-- Create snapshot table for per-station forecast fusion weights
CREATE TABLE IF NOT EXISTS forecast_weights_current (
  station_id TEXT PRIMARY KEY,
  w_open_meteo DOUBLE PRECISION NOT NULL,
  w_caiyun     DOUBLE PRECISION NOT NULL,
  w_imdroid    DOUBLE PRECISION NOT NULL,
  last_issued_at TIMESTAMPTZ NOT NULL,
  updated_at     TIMESTAMPTZ NOT NULL
);