Initial project state: .NET reference, design, Rust port (M0+M1), evidence

Layout:
- src/                    .NET 10 x64 reference: MxNativeCodec, MxNativeClient,
                          MxAsbClient, probes, tests, harnesses. Executable spec.
- design/                 Architectural plan for the Rust port (M0–M6), error
                          model, protocol invariants, risks (R1–R16), adversarial
                          review log (review.md).
- rust/                   Rust workspace. M0 skeleton + M1 codec parity.
                          mxaccess-codec: 215 unit tests + 2 cross-implementation
                          parity tests (byte-identical against .NET reference).
                          Other crates are M0 stubs awaiting M2+.
- captures/               Frida + netsh + pcap evidence per CLAUDE.md
                          ("captures are evidence, not throwaway logs").
- analysis/               Decompiled C# (frida/proxy/decompiled-*),
                          Ghidra exports for native DLLs (`exports/` only —
                          working state at `projects/` and AVEVA's input
                          binaries at `input/` are gitignored).
- docs/                   Reverse-engineering reference docs.
- tools/                  Setup-LiveProbeEnv.ps1 (Infisical credential fetcher),
                          Compute-Crc.ps1 (.NET parity helper).
- .github/workflows/      Rust CI: fmt + build + test + clippy on Windows.
- LICENSE                 MIT (Joseph Doherty, 2026).

Verified:
- cargo test --workspace → 217 passed (215 unit + 2 .NET parity), 0 failed
- cargo clippy --workspace -- -D warnings → clean
- cargo fmt --all -- --check → clean
- cargo publish --dry-run -p mxaccess-codec → packages cleanly

Excluded from history (see .gitignore):
- **/bin, **/obj, **/target — build artifacts
- analysis/ghidra/projects/ — Ghidra working state (regenerable)
- analysis/ghidra/input/ — AVEVA proprietary DLLs (vendor IP)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

analysis/decompiled/aaServicesContractIAuthenticateASB/Asb.Base.V2/SerializationExtensions.cs

@@ -0,0 +1,98 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Xml.Linq;
+using System.Xml.Serialization;
+
+namespace Asb.Base.V2;
+
+public static class SerializationExtensions
+{
+	private static readonly Dictionary<Type, XmlSerializer> xmlSerializers = new Dictionary<Type, XmlSerializer>();
+
+	private static readonly object serializersLock = new object();
+
+	public static string ToXml(this object value)
+	{
+		string xmlText = string.Empty;
+		if (value != null)
+		{
+			try
+			{
+				using TextWriter textWriter = new StringWriter(CultureInfo.CurrentCulture);
+				lock (serializersLock)
+				{
+					XmlSerializer typeSerializer = GetTypeSerializer(value.GetType());
+					if (typeSerializer != null)
+					{
+						typeSerializer.Serialize(textWriter, value);
+						xmlText = textWriter.ToString();
+					}
+				}
+			}
+			catch
+			{
+			}
+		}
+		return NormalizeXmlText(xmlText);
+	}
+
+	private static XmlSerializer GetTypeSerializer(Type objectType)
+	{
+		XmlSerializer xmlSerializer = null;
+		if (objectType != null)
+		{
+			lock (serializersLock)
+			{
+				if (!xmlSerializers.ContainsKey(objectType))
+				{
+					string defaultNamespace = "urn:invensys.schemas";
+					object[] customAttributes = objectType.GetCustomAttributes(inherit: true);
+					for (int i = 0; i < customAttributes.Length; i++)
+					{
+						if (customAttributes[i] is XmlRootAttribute xmlRootAttribute)
+						{
+							defaultNamespace = xmlRootAttribute.Namespace;
+							break;
+						}
+					}
+					xmlSerializer = new XmlSerializer(objectType, defaultNamespace);
+					xmlSerializers.Add(objectType, xmlSerializer);
+				}
+				else
+				{
+					xmlSerializer = xmlSerializers[objectType];
+				}
+			}
+		}
+		return xmlSerializer;
+	}
+
+	private static string NormalizeXmlText(string xmlText)
+	{
+		if (string.IsNullOrEmpty(xmlText))
+		{
+			return xmlText;
+		}
+		if (Environment.Is64BitProcess)
+		{
+			using StringReader textReader = new StringReader(xmlText);
+			using IEnumerator<XElement> enumerator = XDocument.Load(textReader).Elements().GetEnumerator();
+			if (enumerator.MoveNext())
+			{
+				XElement current = enumerator.Current;
+				XAttribute xAttribute = current.Attribute(XNamespace.Xmlns + "xsd");
+				XAttribute xAttribute2 = current.Attribute(XNamespace.Xmlns + "xsi");
+				if (xAttribute != null && xAttribute2 != null)
+				{
+					current.ReplaceAttributes(xAttribute2, xAttribute);
+				}
+				using TextWriter textWriter = new StringWriter(CultureInfo.CurrentCulture);
+				current.Save(textWriter);
+				xmlText = textWriter.ToString();
+			}
+		}
+		return xmlText;
+	}
+}