feat: catalog read cache (api + user apps) and clearer Zarrin accounting errors

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/user-app/src/api/cachedReads.ts

@@ -0,0 +1,18 @@
+// Cached versions of the reads screens repeat on every visit. Each one goes
+// through queryCache under its own key; writes stay on `api` directly.
+import { api } from './client'
+import { KEYS, useQueryCache, type FetchOptions } from '../stores/queryCache'
+
+export function useCachedReads() {
+  const cache = useQueryCache()
+  return {
+    me: (o?: FetchOptions) => cache.fetch(KEYS.profile, api.getMe, o),
+    myOrders: (o?: FetchOptions) => cache.fetch(KEYS.orders, api.getMyOrders, o),
+    accountingBalance: (o?: FetchOptions) => cache.fetch(KEYS.balance, api.getAccountingBalance, o),
+    myLedgerEntries: (o?: FetchOptions) => cache.fetch(KEYS.ledger, api.getMyLedgerEntries, o),
+    goldPrice: (o?: FetchOptions) => cache.fetch(KEYS.goldPrice, () => api.getLatestGoldPrice(), o),
+    homeSlider: (o?: FetchOptions) => cache.fetch(KEYS.homeSlider, api.getHomeSlider, o),
+    peek: cache.peek,
+    invalidate: cache.invalidate,
+  }
+}