fix: report automation preparation gate failures

Launcher.Next.App/PilotCli.cs

@@ -127,7 +127,12 @@ internal static class PilotCli
         if (!TryResolvePaths(config, out var paths, out _)) return new(false, false, false, false, false);
         var service = CreateService(paths); var product = new ProductInstallation(paths.AcadExecutable, "2026", "x64", []);
         var request = new PilotPreparationRequest(config, product, manifest, manifestHash, options.PackageSource, options.PilotRoot, Path.Combine(options.PilotRoot, "startup", phase + ".scr"));
-        var prepared = await service.PrepareAsync(request, CancellationToken.None); if (prepared.Plan is null) return new(false, false, false, false, false);
+        var prepared = await service.PrepareAsync(request, CancellationToken.None);
+        if (prepared.Plan is null)
+        {
+            Console.Error.WriteLine("AUTOMATION_PREPARE_BLOCKED:" + string.Join(',', prepared.SafetyDecision.Violations));
+            return new(false, false, false, false, false);
+        }
         var execution = await service.ExecuteAsync(new(request, prepared.Plan, PermitService.Issue(prepared.Plan, config.ExecutionPermitLifetimeSeconds)), CancellationToken.None); if (!execution.Started || execution.ProcessId is null) return new(false, false, false, false, false);
         var forcedCleanup = false;
         var gracefulExit = false;

tests/Launcher.Next.Tests/PathAndLaunchTests.cs

@@ -90,6 +90,11 @@ public sealed class PathAndLaunchTests
     [Fact] public void ProductionLaunch_DoesNotExposeSentinels() { var source = File.ReadAllText(Path.Combine(FindRoot(), "Launcher.Next.Autodesk", "AutodeskAdapters.cs")); Assert.DoesNotContain("PHP_REC_AUTOMATION_BEFORE_PXP_1", source[..source.IndexOf("BuildAutomationScript", StringComparison.Ordinal)]); }
     [Fact] public void CorporateDfsRoot_RemainsConfigurationOnly() => Assert.DoesNotContain("phimproject.com", File.ReadAllText(Path.Combine(FindRoot(), "Launcher.Next.Core", "LauncherPaths.cs")), StringComparison.OrdinalIgnoreCase);
     [Fact] public void PilotRootPolicy_AcceptsItsTrustedRoot() => Assert.True(new PilotRootPolicy("C:\\Pilot").Validate("C:\\Pilot").IsValid);
+    [Fact] public void AutomationPrepare_ReportsSafetyViolations()
+    {
+        var source = File.ReadAllText(Path.Combine(FindRoot(), "Launcher.Next.App", "PilotCli.cs"));
+        Assert.Contains("AUTOMATION_PREPARE_BLOCKED", source);
+    }
 
     [Fact] public void ProductionSource_HasNoForbiddenPathLiterals()
     {