chore: Update WebAPI example to use InMemory storage and Gemini provider

- Change storage provider from Redis to InMemory for easier testing
- Switch AI provider from Anthropic to Gemini for demonstration
- Update configuration comments for clarity

Author: byerlikaya

examples/WebAPI/Program.cs

@@ -55,8 +55,8 @@ static void RegisterServices(IServiceCollection services, IConfiguration configu
 
     // Add SmartRag services with minimal configuration
     services.UseSmartRag(configuration,
-        storageProvider: StorageProvider.Redis,  // Use Redis as requested
-        aiProvider: AIProvider.Anthropic               // Use Gemini provider
+        storageProvider: StorageProvider.InMemory,  // Use Redis as requested
+        aiProvider: AIProvider.Gemini               // Use Gemini provider
     );