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

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

apps/api/src/modules/accounting-sync/accounting-config.service.ts

@@ -18,6 +18,7 @@ import {
 import { ACCOUNTING_PROVIDERS, AccountingProvider, ProviderName, ProviderSettings, isProviderName } from './providers';
 import { openSecret, sealSecret, secretKeySource } from './secret-box';
 import { parsePemCertificates } from './accounting-http';
+import { CatalogCacheService } from '../catalog/catalog-cache.service';
 
 /** The first certificate of a pasted bundle, for display; null when none parses. */
 function describeCertificate(pem: string | null) {
@@ -59,7 +60,10 @@ export class AccountingConfigService implements OnModuleInit {
   private readonly logger = new Logger('Accounting');
   private cache: { at: number; config: AccountingConfig } | null = null;
 
-  constructor(private readonly prisma: PrismaService) {}
+  constructor(
+    private readonly prisma: PrismaService,
+    private readonly catalogCache: CatalogCacheService,
+  ) {}
 
   onModuleInit() {
     if (secretKeySource() !== 'ACCOUNTING_SECRET_KEY') {
@@ -203,6 +207,8 @@ export class AccountingConfigService implements OnModuleInit {
       create: { key: ACCOUNTING_CONFIG_KEY, value: next as unknown as Prisma.InputJsonValue },
     });
     this.cache = null;
+    // The provider and product-sync switch decide which products read as out of stock.
+    this.catalogCache.invalidate();
     return { providerChanged: current.provider !== next.provider };
   }