Add modules/lib/logging.sh with log(), skip(), warn(), err() helpers.
Source it in all 84 scripts (core, DEs, optional apps) and replace bare
echo calls with structured log messages. Add log file capture to install.sh.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Each script installs the DE meta-package, an appropriate display manager,
PipeWire audio, NetworkManager, Bluetooth, and Flatpak, then enables the
relevant services (sddm/gdm/lightdm/cosmic-greeter).
COSMIC falls back to sddm if cosmic-greeter is not installed.
tui-install.sh: DE menu expanded from 3 to 8 entries (height 20×70).
install-modules.sh: DEs added to checklist, summary, and dispatch so
they can be installed standalone on an existing system.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>