Add warning to default backend

Signed-off-by: Tim Hansen <timbonicus@gmail.com>

packages/create-app/templates/default-app/packages/backend/src/index.ts

@@ -81,6 +81,8 @@ async function main() {
   apiRouter.use('/techdocs', await techdocs(techdocsEnv));
   apiRouter.use('/proxy', await proxy(proxyEnv));
   apiRouter.use('/search', await search(searchEnv));
+
+  // Add backends ABOVE this line; this 404 handler is the catch-all fallback
   apiRouter.use(notFoundHandler());
 
   const service = createServiceBuilder(module)