refactor(workspace): enforce layered crate boundaries

frontend/src/router/routes/helpers.ts

@@ -1,3 +1,12 @@
 import { importWithRetry } from '@/utils/importRetry'
 
-export const view = <T>(loader: () => Promise<T>) => () => importWithRetry(loader)
+type PrefetchableRouteLoader<T> = (() => Promise<T>) & {
+  prefetch: () => Promise<T>
+}
+
+export const view = <T>(loader: () => Promise<T>): PrefetchableRouteLoader<T> => {
+  const routeLoader = (() => importWithRetry(loader)) as PrefetchableRouteLoader<T>
+  // 预取只做一次原始 import；失败时不得触发导航加载器的清缓存和强刷恢复逻辑。
+  routeLoader.prefetch = loader
+  return routeLoader
+}