stats: new public stats schema (source/series/obs/region/fetch_run + raw CBS, Eurostat, FRED, BIS tables) and the stats collector (scripts/stats-fetch.ts); preflight checks the stats tables

scripts/stats/cbs-series.ts

@@ -0,0 +1,26 @@
+// Chart series normalised from the raw CBS rows (stats.cbs_obs → stats.series/obs).
+// `dims` must match the observation's dimension codes exactly (see stats.cbs_code for titles).
+import { GOUDA_RING } from './common';
+
+export type CbsSeriesDef = {
+	id: string;
+	table: string;
+	measure: string;
+	dims?: Record<string, string>;
+	freq: 'M' | 'Q' | 'S' | 'A';
+	title: string;
+	unit: string;
+	theme: string;
+	region?: string;
+	/** Expand into one series per region (id suffixed with :<code>). */
+	regionDim?: string;
+	regions?: { code: string; region: string }[];
+	scale?: number;
+};
+
+export const RING = [
+	{ code: 'NL01', region: 'NLD' },
+	...GOUDA_RING.map((code) => ({ code, region: code }))
+];
+
+export const CBS_SERIES: CbsSeriesDef[] = [];