Add project files.

DXApp.TemplateKitProject/Program.cs

@@ -0,0 +1,34 @@
+using DXApp.TemplateKitProject.Data;
+using DXApp.TemplateKitProject.Services;
+using Microsoft.EntityFrameworkCore;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddRazorPages();
+
+// Datenbank
+var connectionString = builder.Configuration.GetConnectionString("EcmContext")
+    ?? throw new InvalidOperationException("Connection string 'EcmContext' not found.");
+builder.Services.AddDbContext<AppDbContext>(options =>
+    options.UseSqlServer(connectionString));
+
+// Services
+builder.Services.AddScoped<PdfAttachmentExtractorService>();
+builder.Services.AddScoped<ZugferdExtractorService>();
+builder.Services.AddScoped<ZugferdParserService>();
+builder.Services.AddScoped<ZugferdImportService>();
+
+var app = builder.Build();
+
+if (!app.Environment.IsDevelopment())
+{
+    app.UseExceptionHandler("/Error");
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+app.UseStaticFiles();
+app.UseRouting();
+app.UseAuthorization();
+app.MapRazorPages();
+app.Run();