Verify a verification code sent during signup or login.

This command is useful when:

• You received a verification code via email
• You want to complete a signup/login process later
• You need to manually enter a code from logs (dev environment)

Examples:

Verify with a code you received

mutiro auth verify user@example.com 123456

In dev environment, check logs for the actual code:

docker logs auth-dev | grep "Verification code"

mutiro auth verify <email> <code> [flags]