g3rm0n v0.1.3

Added

• macOS support (macOS 12 or newer, Apple silicon and Intel), with the same
  panels, keys, folding, setup and AI usage as on Linux. A new platform backend reads
  the Mac with its stock tools (sysctl, vm_stat, iostat, netstat, ioreg,
  pmset, df, ps, route) and never needs sudo. Memory follows Activity Monitor,
  and the disk panel shows the data volume where your files live. The Apple GPU is shown.
  Where macOS keeps a reading for root, g3rm0n shows the closest one any user can
  get: the core layout instead of per-core load, and no temperature.
• The installer works on macOS. The same one-line curl … | bash runs with
  macOS's own bash 3.2, finds Homebrew's bash 5 (or says brew install bash), and
  gives macOS-style PATH hints (~/.zshrc, ~/.bash_profile).
• g3rm0n finds a bash 5 by itself when it's started by an older bash (macOS's
  /bin/bash) or by bash in POSIX mode (sh g3rm0n where sh is bash).
• install.sh --from DIR installs offline from an unpacked release or a checkout.
• README: a Platforms section that lists what each platform reads and where
  readings differ.

Changed

• Only run-time files are installed: the program, its modules, the backend for
  your operating system, the completions and the license, about 100 KB instead of
  the whole repository. Reinstalling removes files left by older installs, and
  release tarballs no longer carry tests, rules, CI or contributor docs.
• Everything OS-specific moved into platform backends (lib/platform/linux.sh,
  lib/platform/darwin.sh) behind one documented contract. g3rm0n refuses to start
  with an incomplete backend. Linux output is unchanged.
• Claude reset times are parsed in jq instead of with GNU date, so they behave
  the same everywhere.
• The header shows the short host name (mac-mini, not mac-mini.local) and
  shortens very long ones, so the OS and kernel always stay visible.
• For contributors: every test suite now runs on Ubuntu 22.04 and 24.04 and on macOS
  14 and 15, through shared portable helpers (tests/lib/common.sh). Two new suites
  join them. tests/platform.sh checks every backend against the contract and runs
  the macOS backend on recorded macOS output on any machine. tests/install.sh checks
  the installed file set, release tarballs and the installer under bash 3.2.
  scripts/bump-version.sh works with BSD sed, and a release-check workflow
  installs every published release with the one-line installer on Linux and macOS.

Fixed

• curl … | sh is now refused with the "run this installer with bash" hint on
  systems where sh is bash (macOS, Fedora), instead of running in POSIX mode.
• zsh g3rm0n finds bash correctly (zsh doesn't split an unquoted $PATH).
• fish: completing a comma-separated --sections or --fold list works on macOS too
  (fish's own list helper needs GNU sed).