chore: register codegen-kotlin-exposed1x-check as a reactor-excluded pom

Review fix (MAJOR #3) for issue #390. The new module is excluded from the
default reactor (like integration-tests / integration-tests-kotlin), so
`mvn versions:set` during a release silently skips it — same latent drift
check-pom-versions.sh already guards the other two against.

- scripts/check-pom-versions.sh: added
  server/java/codegen-kotlin-exposed1x-check/pom.xml to EXCLUDED_POMS;
  updated the header comment ("two" -> "three", and noted this one is
  excluded for a different reason — a newer Kotlin compiler than the
  reactor's, not docker).
- docs/RELEASING.md step 1: "the two reactor-EXCLUDED integration-test
  modules" -> "the three reactor-EXCLUDED modules", naming the new one and
  its different exclusion reason. The tree-wide grep bump already covers it
  (it globs server/java), so no procedural change — only the count/list.

Verified: `scripts/check-pom-versions.sh` passes —
"✓ 3 parent + 1 property pom(s) match reactor 8.0.11".

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M1mRRB1K2WdYy82kntMQdx

Author: dmealing

docs/RELEASING.md

@@ -764,9 +764,11 @@ versioned on its own major line — npm major + 7, so `7.x` while npm was `0.x`
 
 ## Procedure
 
-1. **Bump** the version in **all** poms — parent + reactor modules **and the two
-   reactor-EXCLUDED integration-test modules** (`server/java/integration-tests/pom.xml`,
-   `server/java/integration-tests-kotlin/pom.xml`). Use the tree-wide `grep`, NOT
+1. **Bump** the version in **all** poms — parent + reactor modules **and the three
+   reactor-EXCLUDED modules** (`server/java/integration-tests/pom.xml`,
+   `server/java/integration-tests-kotlin/pom.xml`, and — issue #390, excluded for a
+   different reason (a newer Kotlin compiler than the reactor's, not docker) —
+   `server/java/codegen-kotlin-exposed1x-check/pom.xml`). Use the tree-wide `grep`, NOT
    `mvn versions:set`: `versions:set` only walks the reactor and silently leaves the
    excluded modules behind, so their `<parent><version>` lags and the next tag fails
    `release-gate (java|kotlin)` with "Non-resolvable parent POM".

scripts/check-pom-versions.sh

@@ -2,14 +2,18 @@
 #
 # Guard: every reactor-EXCLUDED pom must carry the SAME MetaObjects version as the
 # reactor root (server/java/pom.xml) — whether it names it as a <parent><version>
-# (the integration-test modules) or as a <metaobjects.version> property (a project
-# that merely CONSUMES the published artifacts, like the website showcase).
+# (the three reactor-excluded Java/Kotlin modules below) or as a
+# <metaobjects.version> property (a project that merely CONSUMES the published
+# artifacts, like the website showcase).
 #
-# Why this exists: integration-tests + integration-tests-kotlin are intentionally
-# NOT listed in the parent reactor's <modules> (they need docker; `mvn test` stays
-# docker-free — see scripts/integration-test.sh). Because they are outside the
-# reactor, `mvn versions:set` during a release bumps every reactor module but
-# SILENTLY SKIPS these two. Their <parent><version> then lags (e.g. reactor at
+# Why this exists: integration-tests, integration-tests-kotlin, and (issue #390)
+# codegen-kotlin-exposed1x-check are intentionally NOT listed in the parent
+# reactor's <modules> (they need docker, or in the third's case a newer Kotlin
+# compiler than the reactor's — `mvn test` stays docker-free and codegen-kotlin
+# stays on Kotlin 2.0.21; see scripts/integration-test.sh and that module's pom).
+# Because they are outside the reactor, `mvn versions:set` during a release bumps
+# every reactor module but SILENTLY SKIPS these three. Their <parent><version> then
+# lags (e.g. reactor at
 # 7.5.1-SNAPSHOT, these stuck at 7.4.4-SNAPSHOT), so `../pom.xml` no longer matches
 # the declared parent → Maven rejects relativePath, falls back to repos, the
 # SNAPSHOT isn't there, and `release-gate (java|kotlin)` fails with
@@ -34,6 +38,7 @@ fi
 EXCLUDED_POMS=(
   "server/java/integration-tests/pom.xml"
   "server/java/integration-tests-kotlin/pom.xml"
+  "server/java/codegen-kotlin-exposed1x-check/pom.xml"
 )
 
 # Poms with NO <parent> that consume the published artifacts through a