ssh-agent-switcher 1.0.0

Released on 2025-12-25.

• Added support for daemonization, making it easier (and more reliable)
  to start ssh-agent-switcher from login scripts.

• Added a manual page.

• Fixed long-standing issue where long agent responses with many keys
  locked up the ssh-agent-switcher due to short internal buffers.
  The proxying logic now supports partial reads and writes.

• Rewrote the codebase (in Rust) to support adding new features and to
  simplify maintenance on my side.

• Switched to a Make-based build system, dropping Bazel which was only
  really needed for test execution.