feat: move distribution builds to platform Docker builder

platform/api/resource_handlers_test.go

@@ -291,7 +291,9 @@ func TestConfigWriteAndFileDispatchAPIAreScopedAndSafe(t *testing.T) {
 }
 
 func TestCoreAPIServerRuntimeDistributionAndJobWorkflows(t *testing.T) {
-	router := newTestRouter()
+	releaseBuilds := make(chan struct{})
+	t.Cleanup(func() { close(releaseBuilds) })
+	router := newTestRouterWithDistributionBuilder(apiTestDistributionBuilder{release: releaseBuilds})
 	adminSession := createAdminSession(t, router)
 	serverID := createRuntimeAPIFixtures(t, router, adminSession)
 
@@ -1604,14 +1606,34 @@ func TestProductionOperationsGovernanceRoutesAreDurableAndRedacted(t *testing.T)
 	}
 }
 
-func newTestRouter() http.Handler {
+type apiTestDistributionBuilder struct {
+	release <-chan struct{}
+}
+
+func (builder apiTestDistributionBuilder) Readiness() (bool, string) {
+	return true, ""
+}
+
+func (builder apiTestDistributionBuilder) Build(input domain.DistributionBuildInput) ([]byte, error) {
+	if builder.release != nil {
+		<-builder.release
+	}
+	return []byte("api-platform-built-distribution:" + input.JobID), nil
+}
+
+func newTestRouterWithDistributionBuilder(builder service.DistributionBuilder) http.Handler {
 	core := service.NewCoreService(repo.NewMemoryStore())
+	core.ConfigureDistributionBuilder(builder)
 	if err := core.SeedLocalPlatformAdmin(); err != nil {
 		panic(err)
 	}
 	return NewTestRouterWithCore(core)
 }
 
+func newTestRouter() http.Handler {
+	return newTestRouterWithDistributionBuilder(nil)
+}
+
 func apiRouterWithoutSeededAdmin() http.Handler {
 	return NewTestRouterWithCore(service.NewCoreService(repo.NewMemoryStore()))
 }