feat: move distribution builds to platform Docker builder

platform/service/resources_test.go

@@ -1407,7 +1407,28 @@ func TestCoreServicePropagatesDuplicateErrors(t *testing.T) {
 }
 
 func newTestCoreService() *CoreService {
-	return newCoreService(repo.NewMemoryStore(), func() time.Time { return fixedTime })
+	svc := newCoreService(repo.NewMemoryStore(), func() time.Time { return fixedTime })
+	svc.ConfigureDistributionBuilder(staticDistributionBuilder{payload: []byte("platform-built-distribution")})
+	return svc
+}
+
+type staticDistributionBuilder struct {
+	payload []byte
+	err     error
+}
+
+func (builder staticDistributionBuilder) Readiness() (bool, string) {
+	if builder.err != nil {
+		return false, builder.err.Error()
+	}
+	return true, ""
+}
+
+func (builder staticDistributionBuilder) Build(domain.DistributionBuildInput) ([]byte, error) {
+	if builder.err != nil {
+		return nil, builder.err
+	}
+	return domain.CopyBytes(builder.payload), nil
 }
 
 func createPluginAndRunEndpoint(t *testing.T, svc *CoreService) (domain.GamePlugin, domain.RunEndpoint) {