优化结构

internal/app/runtime_test.go

@@ -40,7 +40,7 @@ func (contributor testTaskContributor) RegisterTasks(registry *platformtask.Regi
 func TestRuntimeAppliesAllContributions(t *testing.T) {
 	registry := platformtask.NewRegistry()
 	route := &testRouteRegistrar{}
-	runtime := Runtime(RuntimeContributions{
+	runtime := Build(Composition{
 		Routes: []module.RouteRegistrar{route},
 		Tasks:  []platformtask.Contributor{testTaskContributor{name: "test.runtime"}},
 	}, registry)