fix(platform): add temporary invttrdg product fallback

services/platform-service/src/modules/products/cache.ts

@@ -7,6 +7,28 @@ import * as repository from './repository.js';
 import type { ProductDoc } from './types.js';
 
 const productCache = new Map<string, ProductDoc>();
+const TEMPORARY_FALLBACK_PRODUCTS: Record<string, ProductDoc> = {
+  // TODO(platform): remove this hardcoded invttrdg fallback after creating the
+  // real product in the platform-service /products registry.
+  invttrdg: {
+    id: 'invttrdg',
+    productId: 'invttrdg',
+    displayName: 'Investment Trading',
+    licensePrefix: 'INVTTRDG',
+    packageName: 'com.bytelyst.invttrdg',
+    defaultPlan: 'free',
+    trialDays: 14,
+    deviceLimits: {
+      free: 1,
+      pro: 3,
+      enterprise: 10,
+    },
+    websiteUrl: 'https://invttrdg.bytelyst.com',
+    status: 'active',
+    createdAt: '2026-05-05T00:00:00.000Z',
+    updatedAt: '2026-05-05T00:00:00.000Z',
+  },
+};
 
 /**
  * Load all products from Cosmos into memory.
@@ -20,17 +42,20 @@ export async function loadProductCache(): Promise<void> {
 
 /** Get a product by ID from cache. */
 export function getProduct(productId: string): ProductDoc | undefined {
-  return productCache.get(productId);
+  return productCache.get(productId) ?? TEMPORARY_FALLBACK_PRODUCTS[productId];
 }
 
 /** Check if a productId exists in cache. */
 export function isValidProduct(productId: string): boolean {
-  return productCache.has(productId);
+  return productCache.has(productId) || Boolean(TEMPORARY_FALLBACK_PRODUCTS[productId]);
 }
 
 /** Get all cached products. */
 export function getAllProducts(): ProductDoc[] {
-  return Array.from(productCache.values());
+  return [
+    ...Array.from(productCache.values()),
+    ...Object.values(TEMPORARY_FALLBACK_PRODUCTS).filter(product => !productCache.has(product.id)),
+  ];
 }
 
 /** Current cache size (for tests/health). */