backend integration started

src/queries/hooks.ts

@@ -99,6 +99,23 @@ export function useCatalogueProducts(query: CatalogueQuery) {
   });
 }
 
+/**
+ * The categories inside one brand's table.
+ *
+ * Brand-scoped because the backend reads them from that brand's own table
+ * (`catalogueController.go:38-45` refuses without one) — there is no
+ * catalogue-wide category list to ask for. That is why the rail nests
+ * categories under a brand rather than listing them at the top level.
+ */
+export function useCatalogueCategories(brand: string | undefined) {
+  return useQuery({
+    queryKey: queryKeys.catalogue.categories(brand ?? ''),
+    queryFn: () => catalogueApi.categories(brand as string),
+    enabled: Boolean(brand),
+    ...stable,
+  });
+}
+
 export function useCatalogueBrands() {
   return useQuery({
     queryKey: queryKeys.catalogue.brands(),
@@ -118,19 +135,10 @@ export function useImportedRefs(tenantid: number | undefined) {
 
 /* ── Products ────────────────────────────────────────────────────────────── */
 
-export function useProductCategories(tenantid: number | undefined) {
-  return useQuery({
-    queryKey: queryKeys.products.categories(tenantid ?? 0),
-    queryFn: () => productsApi.categories(tenantid as number),
-    enabled: typeof tenantid === 'number' && tenantid > 0,
-    ...stable,
-  });
-}
-
 /**
  * The tenant's categories as they are actually used.
  *
- * Prefer this over `useProductCategories`, which reads a master table missing
+ * Prefer this over `products/getproductcategories`, the master table missing
  * rows for live categoryids and hardcoded to `moduleid = 2`.
  */
 export function useTenantCategories(tenantid: number | undefined) {
@@ -196,21 +204,6 @@ export function useOrderSummary(tenantid: number | undefined) {
   });
 }
 
-/**
- * Till health for one outlet.
- *
- * One request per branch — `locationid` is required and singular on the POS
- * endpoints, so there is no tenant-wide call to reach for.
- */
-export function usePosHealth(locationid: number | undefined) {
-  return useQuery({
-    queryKey: queryKeys.insights.posHealth(locationid ?? 0),
-    queryFn: () => insightsApi.posHealth(locationid as number),
-    enabled: typeof locationid === 'number' && locationid > 0,
-    ...live,
-  });
-}
-
 /* ── Store Admin: per-branch fan-out ─────────────────────────────────────── */
 
 /**