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-interop/Interop.Lmx/Interop/Lmx/ICheckpointer.cs

@@ -0,0 +1,101 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Interop.Lmx;
+
+[ComImport]
+[Guid("D3A386B0-59F8-422E-A8E8-B155A118A83B")]
+[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+public interface ICheckpointer
+{
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void Shutdown();
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void DeleteCheckpointFile();
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void DeleteCheckpoint([In] int AutomationObjectId);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	[return: MarshalAs(UnmanagedType.Interface)]
+	IAutomationObjectCheckpoint CreateAutomationObjectCheckpoint([In] int ObjectID, [In][MarshalAs(UnmanagedType.LPWStr)] string AutomationObjectName, [In] VBGUID CLSIDOfBFO, [In] int AutomationObjectSignature);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	[return: MarshalAs(UnmanagedType.Interface)]
+	IAutomationObjectCheckpoint GetAutomationObjectCheckpoint([In] int ObjectID);
+
+	[DispId(2)]
+	IEnumHostedAutomationObjectCheckpoint HostedAutomationObjectCheckpoints
+	{
+		[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+		[return: MarshalAs(UnmanagedType.Interface)]
+		get;
+	}
+
+	[DispId(3)]
+	CheckpointerStatus status
+	{
+		[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+		get;
+	}
+
+	[DispId(5)]
+	CheckpointOperationResult OperationStatus
+	{
+		[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+		get;
+	}
+
+	[DispId(4)]
+	VBFILETIME checkpointFiletime
+	{
+		[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+		get;
+	}
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void RegisterAutomationObject([In] int AutomationObjectId);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void UnRegisterAutomationObject([In] int AutomationObjectId);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void CheckpointProperty([In] MxAttributeHandle MxAttributeHandle, [In][MarshalAs(UnmanagedType.Interface)] MxValue pMxValue);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	[return: MarshalAs(UnmanagedType.Interface)]
+	IAutomationObjectCheckpoint GetRuntimeCheckpoint([In] int ObjectID);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void PersistDeployedCheckpoints();
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void GetPrimitiveStateChange([In] short primitiveId, [MarshalAs(UnmanagedType.Interface)] out IStream stream);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void DeleteCheckpoints([In] int cnt, [In] ref int objectIds);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void SaveCheckpointsToStream([In] int category, [In] int cnt, [In] ref int checkpoints, [MarshalAs(UnmanagedType.Interface)] IStream stream);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void CreateCheckpointsFromStream([In] int cnt, [In][Out][ComAliasName("Interop.Lmx.LoadCheckpointResult")] ref LoadCheckpointResult staticCheckpoints, [In] Guid guid, [In][MarshalAs(UnmanagedType.Interface)] IStream stream);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void DeleteRuntimeCheckpoint([In] int AutomationObjectId);
+
+	[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+	void CreateRuntimeCheckpoint([In] int AutomationObjectId);
+
+	[DispId(6)]
+	bool DeploymentInProgress
+	{
+		[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+		get;
+		[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+		[param: In]
+		set;
+	}
+}