update XML IO pattern.

App/wwwroot/HiAPI-docsite/api/Hi.MachiningProcs.LocalProjectService.html

@@ -2069,6 +2069,42 @@ cycle (they live in the SyntaxPiece JSON dataflow rather than in any
 
 
 
+  <a id="Hi_MachiningProcs_LocalProjectService_Reg_" data-uid="Hi.MachiningProcs.LocalProjectService.Reg*"></a>
+
+  <h3 id="Hi_MachiningProcs_LocalProjectService_Reg_Hi_Common_XmlUtils_XFactory_" data-uid="Hi.MachiningProcs.LocalProjectService.Reg(Hi.Common.XmlUtils.XFactory)">
+  Reg(XFactory)
+  
+  </h3>
+
+  <div class="markdown level1 summary"><p>Bootstraps XML-factory registration for the simulation pipeline.
+Entry points must call this once at startup before any project XML
+is deserialized. Pass a custom <a class="xref" href="Hi.Common.XmlUtils.XFactory.html">XFactory</a> for test
+isolation, or <code>null</code> to populate <a class="xref" href="Hi.Common.XmlUtils.XFactory.html#Hi_Common_XmlUtils_XFactory_Default">Default</a>.
+Idempotent.</p>
+</div>
+  <div class="markdown level1 conceptual"></div>
+
+  <div class="codewrapper">
+    <pre><code class="lang-csharp hljs">public static void Reg(XFactory factory = null)</code></pre>
+  </div>
+
+  <h4 class="section">Parameters</h4>
+  <dl class="parameters">
+    <dt><code>factory</code> <a class="xref" href="Hi.Common.XmlUtils.XFactory.html">XFactory</a></dt>
+    <dd></dd>
+  </dl>
+
+
+
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+
   <a id="Hi_MachiningProcs_LocalProjectService_ReloadProject_" data-uid="Hi.MachiningProcs.LocalProjectService.ReloadProject*"></a>
 
   <h3 id="Hi_MachiningProcs_LocalProjectService_ReloadProject" data-uid="Hi.MachiningProcs.LocalProjectService.ReloadProject">