test: add Go race detector coverage

Co-authored-by: Cursor <cursoragent@cursor.com>

.github/workflows/race.yml

@@ -0,0 +1,36 @@
+name: Go race detector
+
+on:
+  push:
+    branches:
+      - main
+      - next
+    paths:
+      - '.github/workflows/race.yml'
+      - 'service/**'
+  pull_request:
+    branches:
+      - next
+    paths:
+      - '.github/workflows/race.yml'
+      - 'service/**'
+
+permissions:
+  contents: read
+
+jobs:
+  race:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'service/go.mod'
+          cache: true
+          cache-dependency-path: 'service/go.mod'
+
+      - name: Run race detector
+        run: make -wC service unittests-race

service/Makefile

@@ -44,6 +44,9 @@ unittests:
 unittests-fast:
 	go test ./... -count=1
 
+unittests-race:
+	go test -race ./... -count=1
+
 find-flakey-tests:
 	echo "Running unittests-fast infinitely"
 	sh -c "while $(MAKE) unittests-fast; do :; done"
@@ -54,7 +57,7 @@ find-flakey-tests-inf:
 go-tools:
 	go install "github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.13.2"
 
-.PHONY: codestyle go-tools unittests unittests-fast find-flakey-tests find-flakey-tests-inf
+.PHONY: codestyle go-tools unittests unittests-fast unittests-race find-flakey-tests find-flakey-tests-inf
 
 go-tools-all:
 	go install "github.com/bufbuild/buf/cmd/buf"