refactor: remove dead mock-mode branches in PRODUCT_DATA_PROVIDER/CATEGORY_REPOSITORY

Both tokens switched on getProductProviderMode()/getCategoryProviderMode()
but every case (including 'mock') fell through to the same real API
provider - no mock implementation of either interface exists. Removed
the dead switch instead of leaving code that implies a mock mode which
was never built.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/core/categories/category-repository.token.ts

@@ -1,20 +1,13 @@
 import { InjectionToken, inject } from '@angular/core';
-import { RuntimeProviderStrategyService } from '../providers/runtime-provider-strategy.service';
 import { ApiCategoryRepository } from './repositories/api-category.repository';
 import { CategoryRepository } from './repositories/category.repository';
 
+/**
+ * No mock CategoryRepository implementation exists - same dead branch as
+ * PRODUCT_DATA_PROVIDER. Always resolved to the real API repository
+ * regardless of getCategoryProviderMode(); removed the dead switch.
+ */
 export const CATEGORY_REPOSITORY = new InjectionToken<CategoryRepository>('CATEGORY_REPOSITORY', {
   providedIn: 'root',
-  factory: () => {
-    const strategy = inject(RuntimeProviderStrategyService);
-    const apiRepository = inject(ApiCategoryRepository);
-
-    switch (strategy.getCategoryProviderMode()) {
-      case 'mock':
-      case 'remote-config':
-      case 'api':
-      default:
-        return apiRepository;
-    }
-  }
+  factory: () => inject(ApiCategoryRepository)
 });

src/app/core/products/product-data-provider.token.ts

@@ -1,20 +1,14 @@
 import { InjectionToken, inject } from '@angular/core';
-import { RuntimeProviderStrategyService } from '../providers/runtime-provider-strategy.service';
 import { ApiProductDataProvider } from './providers/api-product-data.provider';
 import { ProductDataProvider } from './providers/product-data-provider.interface';
 
+/**
+ * No mock ProductDataProvider implementation exists - RuntimeProviderStrategyService.
+ * getProductProviderMode() can report 'mock', but there was never a branch that acted
+ * on it, so this always resolved to the real API provider regardless. Removed the dead
+ * switch instead of leaving code that implies a mock mode which doesn't exist.
+ */
 export const PRODUCT_DATA_PROVIDER = new InjectionToken<ProductDataProvider>('PRODUCT_DATA_PROVIDER', {
   providedIn: 'root',
-  factory: () => {
-    const strategy = inject(RuntimeProviderStrategyService);
-    const apiProvider = inject(ApiProductDataProvider);
-
-    switch (strategy.getProductProviderMode()) {
-      case 'mock':
-      case 'remote-config':
-      case 'api':
-      default:
-        return apiProvider;
-    }
-  }
+  factory: () => inject(ApiProductDataProvider)
 });