refactor(Sample): adapt demos to XFactory IProgress<object> signature

Made-with: Cursor

Machining/DemoBuildGeomOnlyMachiningProject.cs

@@ -1,4 +1,4 @@
-using Hi.Common.XmlUtils;
+using Hi.Common.XmlUtils;
 using Hi.Geom;
 using Hi.MachiningProcs;
 using Hi.Mech.Topo;
@@ -83,9 +83,10 @@ public static class DemoBuildGeomOnlyMachiningProject
 			WorkpieceGeomToFixtureBuckleTransformer = new StaticTranslation(new Vec3d(0, 0, 0)),
 		};
 
+		IProgress<object> progress = null;
 		localProjectService.MachiningChain
 				= XFactory.GenByFile<CodeXyzabcMachineTool>(
-					"Resource", "MachineTool/PMC-B1/PMC-B1.mt", GenMode.Default);
+					"Resource", "MachineTool/PMC-B1/PMC-B1.mt", progress);
 		localProjectService.MachiningChainFile = "PMC-B1/PMC-B1.mt";
 
 		localProjectService.SaveProject();