Update CLI scripts to enhance functionality and error handling. Change shebang in cli-ink.js for improved compatibility with TypeScript. Modify websearch.js to utilize EXA_API_KEY from environment variables, adding error handling for missing keys. Refactor wget.js to use ES module syntax and improve filename generation for downloaded content.

cli-ink.js

@@ -1,4 +1,4 @@
-#!/usr/bin/env node
+#!/usr/bin/env -S node --import tsx
 import 'dotenv/config';
 import React from 'react';
 import { render } from 'ink';