fix(clients): resolve 2026-06-18 array-write review findings

- Client.Dotnet-030: add advise-supervisory to IsKnownGatewayCommand (was dead/unreachable, exit 2)
- Client.Go-035/036/037: usage+README list advise-supervisory; add session-id guard test; fix write2 README wording
- Client.Python-037/038: drop regressed 'scaffold' from pyproject; add advise-supervisory CLI tests
- Client.Rust-039/040: document write_array_elements/advise-supervisory in design doc; pin outer MxValue data_type==0
- Client.Java-049/050/051: sync CLIENT_VERSION to 0.1.2; add advise-supervisory test; guard negative uint32 inputs (pending windev gradle verification)

Client READMEs also updated for Server-057 add-family normalization wording.
.NET/Go/Python/Rust verified green locally; Java pending windev.

clients/dotnet/ZB.MOM.WW.MxGateway.Client.Tests/MxGatewayClientCliTests.cs

@@ -82,6 +82,53 @@ public sealed class MxGatewayClientCliTests
         Assert.Equal(string.Empty, error.ToString());
     }
 
+    /// <summary>
+    /// Client.Dotnet-030: <c>advise-supervisory</c> was present in the command
+    /// dispatch table but absent from <see cref="MxGatewayClientCli"/>'s
+    /// <c>IsKnownGatewayCommand</c> guard, so the guard intercepted it first and
+    /// returned exit code 2 "Unknown command" before dispatch could run. This
+    /// test asserts the command is recognized (exit ≠ 2, stderr contains no
+    /// "Unknown command") and reaches the dispatch handler (exit 0, reply written
+    /// to stdout).
+    /// </summary>
+    [Fact]
+    public async Task RunAsync_AdviseSupervisory_IsRecognizedAndReachesDispatch()
+    {
+        using var output = new StringWriter();
+        using var error = new StringWriter();
+        FakeCliClient fakeClient = new();
+        fakeClient.InvokeReplies.Enqueue(new MxCommandReply
+        {
+            SessionId = "session-fixture",
+            Kind = MxCommandKind.AdviseSupervisory,
+            ProtocolStatus = new ProtocolStatus { Code = ProtocolStatusCode.Ok },
+        });
+
+        int exitCode = await MxGatewayClientCli.RunAsync(
+            [
+                "advise-supervisory",
+                "--endpoint",
+                "http://localhost:5000",
+                "--api-key",
+                "test-api-key",
+                "--session-id",
+                "session-fixture",
+                "--server-handle",
+                "12",
+                "--item-handle",
+                "34",
+                "--json",
+            ],
+            output,
+            error,
+            _ => fakeClient);
+
+        Assert.DoesNotContain("Unknown command", error.ToString());
+        Assert.Equal(0, exitCode);
+        Assert.Contains("MX_COMMAND_KIND_ADVISE_SUPERVISORY", output.ToString());
+        Assert.Equal(string.Empty, error.ToString());
+    }
+
     /// <summary>Verifies that error output redacts sensitive API key values.</summary>
     [Fact]
     public async Task RunAsync_ErrorOutput_RedactsApiKey()