feat: add Launcher Next .NET 8 foundation

Launcher.Next.Application/Launcher.Next.Application.csproj

@@ -0,0 +1 @@
+<Project Sdk="Microsoft.NET.Sdk"><ItemGroup><ProjectReference Include="..\Launcher.Next.Core\Launcher.Next.Core.csproj" /></ItemGroup></Project>

Launcher.Next.Application/PrepareLaunchUseCase.cs

@@ -0,0 +1,14 @@
+using Launcher.Next.Core;
+namespace Launcher.Next.Application;
+public sealed class PrepareLaunchUseCase(IProductDiscovery discovery, IAutodeskProcessLauncher launcher, ILauncherTelemetry telemetry)
+{
+    public PreparedLaunch Execute(int year, string profile, string scriptPath)
+    {
+        telemetry.Write("ProductDiscoveryStarted");
+        var product = discovery.DiscoverPlant3D(year) ?? throw new InvalidOperationException("PLANT_PRODUCT_NOT_FOUND");
+        telemetry.Write("ProductDiscovered", new Dictionary<string, object?> { ["version"] = product.ProductVersion, ["architecture"] = product.Architecture });
+        var prepared = launcher.Prepare(new(product, profile, scriptPath, true));
+        telemetry.Write("LaunchPrepared", new Dictionary<string, object?> { ["dryRun"] = true });
+        return prepared;
+    }
+}