v0.6.1

Fixed

• Misleading cannot_connect error on login (#6): wrong-region login failures were being classified as a generic connection error instead of an authentication error. Each Pecron region signs login requests with a different secret, so selecting the wrong region rejects the login identically to a wrong password — but the message told users to check their internet connection instead of suggesting they try another region. The config flow now uses the API library's typed AuthenticationError instead of fragile string matching, and the invalid_auth message now mentions region as a possible cause.