ci(TST-35): run gateway suite on windev nightly

.gitea/workflows/ci.yml

@@ -4,16 +4,16 @@
 # .NET Framework 4.8 / x86 and need MXAccess COM installed, so they build ONLY on a Windows host.
 # They are out of scope for this Linux `portable` job — the `windows-x86` job below builds and
 # tests them on windev (10.100.0.48) over SSH (see scripts/ci/run-windev-ci.sh), and the nightly
-# `nightly-windev` job additionally runs the live-MXAccess smoke, which is scheduled-only so it
-# never gates a push.
+# `nightly-windev` job additionally runs the full solution build, gateway suite, and live-MXAccess
+# smoke, which are scheduled-only so they never gate a push.
 name: ci
 
 on:
   push:
   pull_request:
   schedule:
-    # 06:00 UTC nightly: the `nightly-windev` job re-runs the x86 Worker build + full Worker.Tests on
-    # windev, then the live-MXAccess smoke (MXGATEWAY_RUN_LIVE_MXACCESS_TESTS=1) and a full-slnx build.
+    # 06:00 UTC nightly: x86 Worker build + Worker.Tests, full-slnx build, gateway tests, then the
+    # live-MXAccess smoke (MXGATEWAY_RUN_LIVE_MXACCESS_TESTS=1), serialized on windev's host lock.
     # Push/PR runs skip it — the job is gated `if: github.event_name == 'schedule'`.
     - cron: '0 6 * * *'
 
@@ -182,7 +182,7 @@ jobs:
         run: ./scripts/ci/run-windev-ci.sh test
 
   nightly-windev:
-    # TST-25: scheduled deep run — full Worker.Tests + live-MXAccess smoke + full-slnx build on windev.
+    # TST-35: scheduled deep run — Worker, full-slnx, gateway, and live-smoke tiers on windev.
     # Gated to the schedule event via `if:` (not an unsatisfiable `runs-on`), so push/PR runs mark it
     # skipped, not queued. Never gates a push. On failure it opens a Gitea issue so a red nightly is
     # visible even though nobody watches the Actions page.
@@ -198,7 +198,7 @@ jobs:
       PUBLIC_SERVER_URL: https://gitea.dohertylan.com
     steps:
       - uses: actions/checkout@v4
-      - name: Full Worker.Tests + live-MXAccess smoke on windev
+      - name: Worker + gateway tests + live-MXAccess smoke on windev
         env:
           # WINDEV_SSH_KEY is stored base64-encoded (single line) so Gitea's line-oriented secret
           # masker redacts it in the step env echo; run-windev-ci.sh decodes it. A raw multiline PEM