v0.6.0

Added

• Windows: irm https://raw.githubusercontent.com/moukrea/agentline/main/install.ps1 | iex
  finds Git Bash (or installs Git for Windows with winget), installs jq if needed and
  runs the installer there. The status line runs Git's bash.exe by its C:/ path;
  the terminal's width comes from the console, asked in the background.
• CI on macOS (full suite with Homebrew's bash, and curl | bash from /bin/bash
  3.2) and Windows (install.ps1, render, reinstall, uninstall).

Added (continued)

• A usage-limit reset on another day says which one, in local time:
  ↻23h19 (Tue 9:00), so a reset tomorrow morning is not read as this morning.
  Given up first when the terminal narrows.

Fixed

• macOS: bars and several glyphs came out garbled. macOS's libc takes bytes
  above 0x80 for letters in UTF-8 locales, so bash read "$REPLY█" as a
  variable named REPLY█; names are now braced (and a test keeps it so). Also a
  UTF-8 locale that exists there (en_US.UTF-8; macOS has no C.UTF-8).
• Warnings of newer ShellCheck releases (CI was red since 0.5.1).