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/aaServicesContractIData/ArchestrAServices.ASBContract/VariantTester.cs

@@ -0,0 +1,111 @@
+using System.IO;
+using ArchestrAServices.ASBIDataContract;
+using ArchestrAServices.Contract;
+
+namespace ArchestrAServices.ASBContract;
+
+public struct VariantTester : IASBCustomSerializableType
+{
+	private Variant _testVariant = default(Variant);
+
+	public ushort Type
+	{
+		get
+		{
+			return _testVariant.Type;
+		}
+		set
+		{
+			_testVariant.Type = value;
+		}
+	}
+
+	public int Length
+	{
+		get
+		{
+			return _testVariant.Length;
+		}
+		set
+		{
+			_testVariant.Length = value;
+		}
+	}
+
+	public byte[] Payload
+	{
+		get
+		{
+			return _testVariant.Payload;
+		}
+		set
+		{
+			_testVariant.Payload = value;
+		}
+	}
+
+	public VariantTester(ArchestrAServices.ASBIDataContract.Variant Value)
+	{
+		_testVariant.Type = Value.Type;
+		_testVariant.Length = Value.Length;
+		_testVariant.Payload = Value.Payload;
+	}
+
+	public ArchestrAServices.ASBIDataContract.Variant GetAsVariant()
+	{
+		return new ArchestrAServices.ASBIDataContract.Variant
+		{
+			Type = _testVariant.Type,
+			Length = _testVariant.Length,
+			Payload = _testVariant.Payload
+		};
+	}
+
+	public void Initialize()
+	{
+		_testVariant = default(Variant);
+	}
+
+	public void WriteToStream(BinaryWriter writer)
+	{
+		_testVariant.WriteToStream(writer);
+	}
+
+	public void InitializeFromStream(BinaryReader reader)
+	{
+		_testVariant.InitializeFromStream(reader);
+	}
+
+	public object InitializeArrayFromStream(BinaryReader reader, int arrayCnt)
+	{
+		if (_testVariant.InitializeArrayFromStream(reader, arrayCnt) is Variant[] array)
+		{
+			ArchestrAServices.ASBIDataContract.Variant[] array2 = new ArchestrAServices.ASBIDataContract.Variant[array.Length];
+			for (int i = 0; i < array.Length; i++)
+			{
+				array2[i] = default(ArchestrAServices.ASBIDataContract.Variant);
+				array2[i].Type = array[i].Type;
+				array2[i].Length = array[i].Length;
+				array2[i].Payload = array[i].Payload;
+			}
+			return array2;
+		}
+		return null;
+	}
+
+	public void WriteArrayToStream(object graph, ref BinaryWriter bw)
+	{
+		if (graph is ArchestrAServices.ASBIDataContract.Variant[] array)
+		{
+			Variant[] array2 = new Variant[array.Length];
+			for (int i = 0; i < array.Length; i++)
+			{
+				array2[i] = default(Variant);
+				array2[i].Type = array[i].Type;
+				array2[i].Length = array[i].Length;
+				array2[i].Payload = array[i].Payload;
+			}
+			_testVariant.WriteArrayToStream(array2, ref bw);
+		}
+	}
+}