fix commands

Author: sommeeeer

packages/open-next/src/index.ts

@@ -10,8 +10,8 @@ import { printHeader } from "./build/utils.js";
 const command = process.argv[2];
 if (
   command !== "build" &&
-  command !== "local:config" &&
-  command !== "local:run"
+  command !== "generate local" &&
+  command !== "preview"
 )
   printHelp();
 
@@ -48,7 +48,7 @@ function parseArgs() {
 async function buildLocalConfig() {
   if (!existsSync(LOCAL_CONFIG_PATH)) {
     console.error(
-      "open-next.config.local.ts does not exist. You can run `local:config` first to generate it.",
+      "open-next.config.local.ts does not exist. You can run `generate local` first to generate it.",
     );
     process.exit(1);
   }