feat: extract cms from mp/cms — initial libreshop/cms

Source moved verbatim from mp/cms/ on 2026-04-29; mp was the first
concrete adapter consuming the libreshop toolkit. Builds and publishes
git.librete.ch/libreshop/cms on every main / v* push via the standard
.gitea/workflows/build.yml shared across libreshop components.

src/api/product/routes/product.ts

@@ -0,0 +1,90 @@
+export default {
+	routes: [
+		{
+			method: "POST",
+			path: "/products",
+			handler: "product.create",
+			config: {
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/products",
+			handler: "product.find",
+			config: {
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/promo-products",
+			handler: "product.findCheapest",
+			config: {
+				auth: false,
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/sitemap/products",
+			handler: "product.sitemap",
+			config: {
+				auth: false,
+				policies: []
+			}
+		},
+		{
+			method: "PUT",
+			path: "/products/:id",
+			handler: "product.update",
+			config: {
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/products/:id",
+			handler: "product.findOne",
+			config: {
+				auth: false,
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/products/:id/variants/all",
+			handler: "product.allVariants",
+			config: {
+				auth: false,
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/products/:id/variants/pattern",
+			handler: "product.variantsByPattern",
+			config: {
+				auth: false,
+				policies: []
+			}
+		},
+		{
+			method: "GET",
+			path: "/products/:id/variants",
+			handler: "product.variants",
+			config: {
+				auth: false,
+				policies: []
+			}
+		},
+		{
+			method: "POST",
+			path: "/products/publish",
+			handler: "product.publishByFilter",
+			config: {
+				policies: []
+			}
+		}
+	]
+};