test: finish diagnostic classification

tests/AcDream.Core.Tests/Physics/CellarUpTrajectoryReplayTests.cs

@@ -737,6 +737,7 @@ public class CellarUpTrajectoryReplayTests : IDisposable
     /// Always passes; this is a one-shot tool, not a regression.
     /// </summary>
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void LiveCompare_FirstCap_DiagnosticDump()
     {
         PhysicsDiagnostics.ProbeResolveEnabled    = true;

tests/AcDream.Core.Tests/Physics/DoorBugTrajectoryReplayTests.cs

@@ -162,6 +162,7 @@ public class DoorBugTrajectoryReplayTests
     /// </summary>
     [Fact]
     [Trait("Lane", "InstalledDat")]
+    [Trait("Purpose", "Diagnostic")]
     public void Diagnostic_Tick22760_DumpEngineInternals()
     {
         var datDir = ResolveDatDir();
@@ -215,6 +216,7 @@ public class DoorBugTrajectoryReplayTests
 
     [Fact]
     [Trait("Lane", "InstalledDat")]
+    [Trait("Purpose", "Diagnostic")]
     public void Diagnostic_Tick13558_DumpEngineInternals()
     {
         var datDir = ResolveDatDir();
@@ -686,6 +688,7 @@ public class DoorBugTrajectoryReplayTests
     /// / nothing.
     /// </summary>
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void Diagnostic_CottagePolys_NearWalkthroughPosition()
     {
         var fixturePath = Path.Combine(SolutionRoot(),

tests/AcDream.Core.Tests/Physics/Issue108CellarAscentViewerReplayTests.cs

@@ -281,6 +281,7 @@ public class Issue108CellarAscentViewerReplayTests
     /// below grade, and the branch column attributes the demote site.
     /// </summary>
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void Diagnostic_CellarAscent_PerStepTable()
     {
         var steps = RunAscent(BoomDistance, pathLagMeters: 0f);
@@ -303,6 +304,7 @@ public class Issue108CellarAscentViewerReplayTests
 
     /// <summary>Boom-distance + damping-lag sweep: how wide is the window across poses?</summary>
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void Diagnostic_CellarAscent_PoseSweep()
     {
         foreach (float dist in new[] { 2.61f, 5.0f })

tests/AcDream.Core.Tests/Physics/Issue147ArwicBuildingsDumpTests.cs

@@ -24,6 +24,7 @@ public sealed class Issue147ArwicBuildingsDumpTests
     public Issue147ArwicBuildingsDumpTests(ITestOutputHelper o) => _out = o;
 
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void DumpArwicBuildingsAndObjects()
     {
         var datDir = Env.GetEnvironmentVariable("ACDREAM_DAT_DIR")

tests/AcDream.Core.Tests/Physics/Issue265SteepSlopeCaptureBisectTests.cs

@@ -360,6 +360,7 @@ public class Issue265SteepSlopeCaptureBisectTests
     /// the correct future regression assertion) is still being decided.
     /// </summary>
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void RealCapturedRoofLanding_CharacterizeCurrentBehavior()
     {
         PhysicsDiagnostics.ResetForTest();

tests/AcDream.Core.Tests/Physics/Issue337NeftetRockGeometryInspectionTests.cs

@@ -68,6 +68,7 @@ public sealed class Issue337NeftetRockGeometryInspectionTests
         int BspPolys);
 
     [Fact]
+    [Trait("Purpose", "Diagnostic")]
     public void DumpNeftetLandblockStaticsAndProbeTheWedgePoint()
     {
         System.Globalization.CultureInfo.CurrentCulture =