feat: add four storefront identities

config/store-config.ts

@@ -0,0 +1,30 @@
+/** Shape of a storefront's content config. Same shape for every store —
+ *  the values differ, the structure never does. */
+export type Review = { q: string; a: string };
+
+export type StoreConfig = {
+	/** NEXT_PUBLIC_STORE_CODE; also the @store / shop-system id. */
+	code: string;
+	/** Switcher tab label in the showcase headbar. */
+	label: string;
+	/** Storefront wordmark. */
+	brandName: string;
+	/** Small line under / beside the wordmark. */
+	brandSub: string;
+	nav: string[];
+	cartLabel: string;
+	ctaLabel: string;
+	hero: {
+		eyebrow: string;
+		title: string;
+		body: string;
+		cta: string;
+	};
+	collection: { title: string; meta: string };
+	featured: { kicker: string; title: string; body: string; cta: string };
+	reviews: Review[];
+	footer: { links: string[]; note: string };
+	/** cents × multiplier ÷ 100 → display dollars (exec 16, crypto 3, collector 28, supper 1). */
+	priceMultiplier: number;
+	priceStyle: 'usd' | 'crypto' | 'appraisal' | 'plain';
+};