sidelight 0.5.3
Dependency migration: @mariozechner/pi-tui (deprecated upstream) → @earendil-works/pi-tui.
End-user effect: npm install -g sidelight is now warning-free and leaner — the deprecation notice, the Windows-only koffi FFI blob, and its install-script prompt are all gone. No behavior changes; 92/92 tests.
Found during fresh-machine install testing — thanks, past us, for insisting on that step.