fix: add cli

scripts/cli.ts

@@ -0,0 +1,19 @@
+#!/usr/bin/env node
+
+import { Command } from 'commander';
+import { rewriteAllObservableSubscribeToLastValueFrom } from './code-transform';
+
+const program = new Command();
+
+program
+  .version('1.0.0')
+  .description('A CLI tool to help develop oidc-client-rx');
+
+program
+  .command('rewrite <pattern>')
+  .description('Rewrite files matching the given glob pattern')
+  .action(async (pattern: string) => {
+    await rewriteAllObservableSubscribeToLastValueFrom(pattern);
+  });
+
+program.parse(process.argv);