MCP installer: registers difflore as an MCP server with every detected
AI coding tool, in one shot. Public entry points are install_all,
uninstall_all, status, collect_status_snapshot,
detect_install_drift, and maybe_print_mcp_hint.
CLI style helpers. The public terminal surface uses an ASCII-safe
5-symbol set so Windows logs, CI, and screenshot captures stay aligned.
NO_COLOR env-var disables coloring; support is detected once at startup via
detect_color_support() and cached.