v1.6.0

Added

• Server region on the login screen: US (the default), EU, or Custom. EU points the CLI at https://vault.bitwarden.eu; Custom reveals the server URL field for self-hosted Bitwarden and Vaultwarden. The choice applies to email/password, API key and the interactive terminal login alike, so an EU account no longer has to be told its own server's address. Refs #6.

Changed

• Dependabot proposes lockfile-only cargo updates, so a bump moves agent/Cargo.lock within the bounds agent/Cargo.toml already allows and never raises a floor on its own. The crypto crates are coupled -- ssh-key, rsa and the traits they re-export have to move together or cargo resolves two generations side by side and nothing compiles -- and README's Dependencies section records why that upgrade is a manual, all-at-once edit, along with the binary rebuild every accepted bump needs.