Better shell

Now snaptail CLI supports init and run command.

Minimal setup support, just run:

echo 'export const App = () => <div>Hello</div>' > start.tsx
npx snaptail@latest run start.tsx

Or start with ui library support

npx snaptail@latest init --ui shadcn
npx snaptail@latest run starter.tsx

Improvements

• Added typescript
• CLI now uses commander.js
• Better starter.tsx for init without ui option