v0.4.0

Added

• Colored poly hooks install / uninstall output — a green ✓ header with
  the hook count and the (relative) hooks directory, then one line per hook name,
  replacing the flat list of absolute paths.

Changed

• Installed git-hook shims resolve poly from PATH rather than baking in an
  absolute path to the binary, so a hook always runs whatever poly is current
  (a recorded absolute path could pin a stale or moved build). When poly is not
  on PATH the shim now fails with a clear, actionable message and a non-zero exit
  instead of proceeding as though the hook had passed. Re-run poly hooks install
  to migrate existing shims.

Fixed

• Native-toolchain formatter output is normalized to LF line endings; some
  first-party CLIs emit CRLF on Windows, which made output platform-dependent.