ci: run geode tests in a dedicated isolated job

The first cut appended :geode:test to the build-desktop matrix command.
That was wrong twice over: geode is JVM-only, so it ran 3× across the
ubuntu/macos/windows matrix, and — because org.gradle.parallel=true —
its default suite's CPU-heavy throughput benchmarks (a 1M-event mirror
sync, WireReqFloor, NegentropyServerReconcile) ran concurrently with the
timing-sensitive quartz relay-client tests, flaking
NostrClientReqBypassingRelayLimitsTest.denseSecondBeyondCapIsSteppedPastWithoutStalling.

Move :geode:test into its own test-geode job (needs: lint, ubuntu, JVM
21) so it runs once and its benchmark load can't starve another module's
timing assertions.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KCdJwdhGtmLZ12ViS56S3k

.github/workflows/build.yml

@@ -87,7 +87,7 @@ jobs:
 
       - name: Test + Build Desktop (gradle)
         run: |
-          CMD="./gradlew :quartz:jvmTest :commons:jvmTest :nestsClient:jvmTest :geode:test :cli:test :desktopApp:test :desktopApp:${{ matrix.desktop-task }}"
+          CMD="./gradlew :quartz:jvmTest :commons:jvmTest :nestsClient:jvmTest :cli:test :desktopApp:test :desktopApp:${{ matrix.desktop-task }}"
           if [ "${{ runner.os }}" = "Linux" ]; then
             xvfb-run --auto-servernum $CMD
           else
@@ -110,6 +110,42 @@ jobs:
           name: ${{ matrix.desktop-artifact-name }}
           path: ${{ matrix.desktop-artifact-path }}
 
+  # geode (the standalone Nostr relay) is JVM-only, so it runs in its own job
+  # rather than the build-desktop matrix — one runner suffices (no reason to test
+  # a platform-independent module 3× across the desktop OS matrix). Isolating it
+  # also keeps its default suite's CPU-heavy throughput benchmarks (a 1M-event
+  # mirror sync, WireReqFloor, NegentropyServerReconcile) from contending with the
+  # timing-sensitive quartz relay-client tests under org.gradle.parallel — that
+  # contention flakes tests like NostrClientReqBypassingRelayLimitsTest.
+  test-geode:
+    needs: lint
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v7
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: 21
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v6
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+      - name: Test geode (gradle)
+        run: ./gradlew :geode:test
+
+      - name: Upload geode Test Reports
+        uses: actions/upload-artifact@v7
+        if: failure()
+        with:
+          name: geode Test Reports
+          path: geode/build/reports
+
   test-quartz-ios:
     # Phase 1 of the iOS support plan
     # (amethyst/plans/2026-05-24-ios-support.md): keep :quartz green on iOS

geode/plans/2026-07-24-geode-release.md

@@ -45,7 +45,7 @@ Two simplifications vs. the CLI:
 | Asset naming (`geode-<ver>-<fam>-<arch>`) | `scripts/asset-name.sh` |
 | Release matrix + GHCR push | `.github/workflows/create-release.yml` (`build-geode`, `docker-geode`) |
 | Homebrew formula auto-sync | `.github/workflows/bump-homebrew-geode-formula.yml` |
-| geode tests in CI | `.github/workflows/build.yml` (`:geode:test`) |
+| geode tests in CI (dedicated `test-geode` job) | `.github/workflows/build.yml` |
 | Operator docs | `geode/README.md` |
 
 ## Distribution channels