Config: Update Program.cs with new service registrations

- Add AddMemoryCache() for TransactionCategorizer caching
- Register IPdfToImageConverter
- Register OpenAIVisionClient and ClaudeVisionClient with HttpClient
- Update AIReceiptParser registration to use scoped instead of HttpClient

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

MoneyMap/Program.cs

@@ -1,7 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using MoneyMap.Data;
-using MoneyMap.Pages;
-using MoneyMap.Services; // Add this for the services
+using MoneyMap.Services;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -9,6 +8,9 @@ builder.Services.AddRazorPages();
 builder.Services.AddDbContext<MoneyMapContext>(options =>
     options.UseSqlServer(builder.Configuration.GetConnectionString("MoneyMapDb")));
 
+// Add memory cache for services like TransactionCategorizer
+builder.Services.AddMemoryCache();
+
 // Add session support
 builder.Services.AddDistributedMemoryCache();
 builder.Services.AddSession(options =>
@@ -43,9 +45,16 @@ builder.Services.AddScoped<IDashboardStatsCalculator, DashboardStatsCalculator>(
 builder.Services.AddScoped<ITopCategoriesProvider, TopCategoriesProvider>();
 builder.Services.AddScoped<IRecentTransactionsProvider, RecentTransactionsProvider>();
 builder.Services.AddScoped<ISpendTrendsProvider, SpendTrendsProvider>();
+
+// Receipt services
 builder.Services.AddScoped<IReceiptManager, ReceiptManager>();
 builder.Services.AddScoped<IReceiptAutoMapper, ReceiptAutoMapper>();
-builder.Services.AddHttpClient<IReceiptParser, AIReceiptParser>();
+builder.Services.AddScoped<IPdfToImageConverter, PdfToImageConverter>();
+
+// AI vision clients
+builder.Services.AddHttpClient<OpenAIVisionClient>();
+builder.Services.AddHttpClient<ClaudeVisionClient>();
+builder.Services.AddScoped<IReceiptParser, AIReceiptParser>();
 
 // AI categorization service
 builder.Services.AddHttpClient<ITransactionAICategorizer, TransactionAICategorizer>();