fix(CLI-46): bump client versions past the already-published train + add PR-time drift guard

.NET/Go/Python/Rust clients (plus Contracts, which releases in lockstep
with the .NET Client) move 0.2.0 -> 0.2.1; Java moves 0.2.1 -> 0.2.2. This
starts the next release train the finding recommended, since post-publish
source changes (including the Python connect() event-loop fix, a8f86b5)
had been sitting at already-published version numbers for nine days with
nothing recording the divergence.

- Note the pypi 0.2.0 connect() defect and its supersession by 0.2.1 in
  clients/python/README.md and docs/ClientPackaging.md.
- Add scripts/check-client-versions.ps1: a PR-time guard that finds each
  client's latest publish tag (clients/go/vX.Y.Z for Go, the only client
  with a git tag; the other four publish straight to a registry with no
  tag, so the check reports "no tags found" and passes for them) and fails
  if clients/<lang> changed since that tag while the version constant
  still equals the tag's version. Wired into .gitea/workflows/ci.yml's
  portable job next to the codegen freshness checks (needs fetch-depth: 0
  for tag history).
- Mark remediation batch A Done in
  archreview/2026-08-19/remediation/00-tracking.md.

Verified on macOS: dotnet build clients/dotnet/...slnx (pass), cargo check
--workspace (pass), python -m pytest (168 passed, 1 skipped), gradle test
with JDK 17 (pass, no generated-tree churn to revert this time), gofmt -l
+ go build ./... + go test ./... (clean), and
scripts/check-client-versions.ps1 via pwsh (pass; also verified it fails
correctly when a version constant is rolled back).

clients/java/README.md

@@ -483,7 +483,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.zb.mom.ww.mxgateway:zb-mom-ww-mxgateway-client:0.2.1'
+    implementation 'com.zb.mom.ww.mxgateway:zb-mom-ww-mxgateway-client:0.2.2'
 }
 ````
 

clients/java/build.gradle

@@ -16,11 +16,14 @@ subprojects {
     // 0.2.0 was already published to the Gitea Maven feed on 2026-06-26,
     // before the CLI-37/38/40/41 conformance fixes changed the client's
     // observable behavior (status.category-based validation, hresult < 0,
-    // exact-secret redaction, typed malformed-reply errors). Bump to 0.2.1
-    // so the published coordinate matches the conformant behavior the other
-    // four clients ship at 0.2.0 for the first time. See CLI-39 and the
+    // exact-secret redaction, typed malformed-reply errors). Bumped to 0.2.1
+    // so the published coordinate matched the conformant behavior the other
+    // four clients shipped at 0.2.0 for the first time. See CLI-39 and the
     // "Versioning" section of docs/ClientPackaging.md.
-    version = '0.2.1'
+    // 0.2.1 was itself published (Maven, 2026-08-07); this is the next
+    // release-train bump (CLI-46), one ahead of the other four clients'
+    // 0.2.1 because the Java coordinate has always trailed by one number.
+    version = '0.2.2'
 
     pluginManager.withPlugin('java') {
         java {

clients/java/zb-mom-ww-mxgateway-cli/src/test/java/com/zb/mom/ww/mxgateway/cli/MxGatewayCliTests.java

@@ -60,7 +60,7 @@ final class MxGatewayCliTests {
 
         assertEquals(0, run.exitCode());
         assertEquals("", run.errors());
-        assertTrue(run.output().contains("mxgateway-java 0.2.1"));
+        assertTrue(run.output().contains("mxgateway-java 0.2.2"));
         assertTrue(run.output().contains("gatewayProtocolVersion=3"));
         assertTrue(run.output().contains("workerProtocolVersion=1"));
     }
@@ -90,7 +90,7 @@ final class MxGatewayCliTests {
         CliRun run = execute(new FakeClientFactory(), "version", "--json");
 
         assertEquals(0, run.exitCode());
-        assertTrue(run.output().contains("\"clientVersion\":\"0.2.1\""));
+        assertTrue(run.output().contains("\"clientVersion\":\"0.2.2\""));
         assertTrue(run.output().contains("\"gatewayProtocolVersion\":3"));
     }
 

clients/java/zb-mom-ww-mxgateway-client/src/main/java/com/zb/mom/ww/mxgateway/client/MxGatewayClientVersion.java

@@ -9,7 +9,7 @@ package com.zb.mom.ww.mxgateway.client;
 public final class MxGatewayClientVersion {
     private static final int GATEWAY_PROTOCOL_VERSION = 3;
     private static final int WORKER_PROTOCOL_VERSION = 1;
-    private static final String CLIENT_VERSION = "0.2.1";
+    private static final String CLIENT_VERSION = "0.2.2";
 
     private MxGatewayClientVersion() {
     }