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>

src/MxAsbClient/AsbMessageDumpBehavior.cs

@@ -0,0 +1,75 @@
+using System.ServiceModel;
+using System.ServiceModel.Channels;
+using System.ServiceModel.Description;
+using System.ServiceModel.Dispatcher;
+
+namespace MxAsbClient;
+
+internal sealed class AsbMessageDumpBehavior : IEndpointBehavior
+{
+    private readonly Action<string> trace;
+
+    public AsbMessageDumpBehavior(Action<string> trace)
+    {
+        this.trace = trace;
+    }
+
+    public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
+    {
+    }
+
+    public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
+    {
+        clientRuntime.ClientMessageInspectors.Add(new Inspector(trace));
+    }
+
+    public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
+    {
+    }
+
+    public void Validate(ServiceEndpoint endpoint)
+    {
+    }
+
+    private sealed class Inspector : IClientMessageInspector
+    {
+        private readonly Action<string> trace;
+
+        public Inspector(Action<string> trace)
+        {
+            this.trace = trace;
+        }
+
+        public object? BeforeSendRequest(ref Message request, IClientChannel channel)
+        {
+            MessageBuffer buffer = request.CreateBufferedCopy(int.MaxValue);
+            Message copy = buffer.CreateMessage();
+            request = buffer.CreateMessage();
+            string action = copy.Headers.Action ?? string.Empty;
+            if (action.Contains("registerItems", StringComparison.OrdinalIgnoreCase)
+                || action.Contains("writeIn", StringComparison.OrdinalIgnoreCase)
+                || action.Contains("readIn", StringComparison.OrdinalIgnoreCase)
+                || action.Contains("publishWriteComplete", StringComparison.OrdinalIgnoreCase))
+            {
+                trace("asb.request=" + copy);
+            }
+
+            return null;
+        }
+
+        public void AfterReceiveReply(ref Message reply, object? correlationState)
+        {
+            MessageBuffer buffer = reply.CreateBufferedCopy(int.MaxValue);
+            Message copy = buffer.CreateMessage();
+            reply = buffer.CreateMessage();
+            string xml = copy.ToString();
+            if (xml.Contains("RegisterItemsResponse", StringComparison.OrdinalIgnoreCase)
+                || xml.Contains("ReadResponse", StringComparison.OrdinalIgnoreCase)
+                || xml.Contains("WriteBasicResponse", StringComparison.OrdinalIgnoreCase)
+                || xml.Contains("PublishWriteCompleteResponse", StringComparison.OrdinalIgnoreCase))
+            {
+                trace("asb.reply=" + xml);
+            }
+        }
+    }
+}