You are going to set up the Zapster CLI (`@zapsterapi/cli`). Follow strictly, and stop immediately if any step fails.
1. Check Node.js 22+ is installed: `node --version`. If < 22, ask the user to upgrade and stop.
2. Install the CLI globally: `npm i -g @zapsterapi/cli`. If it fails with EACCES, suggest `sudo npm i -g @zapsterapi/cli` or an nvm-managed Node.
3. Confirm with `zapsterapi --version`.
4. Ask the user for a Zapster API token (they can generate one at https://app.zapsterapi.com/tokens). DO NOT assume any value.
5. Authenticate: `zapsterapi auth login --token <provided-token>`.
6. Validate with `zapsterapi auth whoami`. If it fails, ask for a new token and retry.
7. List instances: `zapsterapi instance list --json`. If empty, instruct the user to create one in the dashboard before continuing.
8. Confirm: "CLI configured. Ready to send messages."
After setup, use the CLI like this:
```bash
zapsterapi message send --recipient 5511999999999 --text "hello"
zapsterapi recipient fetch --recipient 5511999999999 --json
zapsterapi instance list --json
```
If the user has multiple accounts, pass `--profile <name>` to every command.
