install.sh:
- set -eo pipefail + trap ERR with line number and debug hint
- Network connectivity check before any downloads
- curl and git preflight: auto-install or die with clear instructions
- vim auto-install attempt before dying
- sudo availability check (one-time auth, graceful skip when unavailable)
- macOS: offer to install Homebrew if missing
- Node.js: offer nvm install if missing (with fallback to vim-lsp)
- Python3: offer install if missing
- ask() reads from /dev/tty — interactive prompts work under curl | bash
- safe_download(): verifies file non-empty and not an HTML error page
- pkg_install(): unified cross-platform helper (brew/apt/pacman/dnf)
- arch_github()/arch_linux_x64(): normalize uname -m (handles aarch64)
- Temp files cleaned up via EXIT trap
- Symlink creation verified after ln -sf
- vim-plug: fallback to git clone if curl fails; verify file non-empty
- vim +PlugInstall: warn on failure instead of silent continue
- Binary downloads (hadolint, marksman) use named temp files
get.sh (new):
- One-command bootstrap: curl | bash
- Installs git if missing
- Clones repo to ~/.vim (or git pull if already present)
- exec bash install.sh </dev/tty so interactive prompts work correctly
