The CLI now connects to apivault.tech by default

The CLI's built-in API URL is now https://apivault.tech, so sign-in and key management work without extra configuration. The standalone install scripts moved to the same domain:

# Linux / macOS
curl -fsSL https://apivault.tech/install.sh | bash

# Windows PowerShell
irm https://apivault.tech/install.ps1 | iex

Learn more in the installation guide.