Add hashbang to CLI entries (#12223)

Author: markdalgleish

packages/create-react-router/cli.ts

@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 import process from "node:process";
 
 import { createReactRouter } from "./index";

packages/react-router-dev/cli/index.ts

@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 import { run } from "./run";
 
 run().then(

packages/react-router-serve/cli.ts

@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";