v0.0.2

Added

• GoogleTest suite, clang-format check, tracing events with reference counts, and the --version command line argument.
• Warning when TCP_NODELAY cannot be set on a unix domain socket, and io_uring init flags.
• Release automation.

Changed

• The previous OST backend is renamed to ost-legacy.
• The OST frame is split into head and body, and responses carry an explicit body.

Fixed

• Error handling in setup_fd and in argument validation.
• In-flight operations fail with the right size, and cleanup on terminate.
• Handling of URI port parsing errors and the signal handler.