Authentication
ia uses a token stored at ~/.config/insaali/credentials (mode 0600). The token is obtained by signing in through your browser.
Sign in
ia login
Opens your browser to sign in with GitHub or Google, then writes the token to ~/.config/insaali/credentials. The browser tab confirms when you can close it.
Sign out
ia logout
Removes the saved token. If no token is present, prints not signed in.