Workstation optimization: Chrome cleanup, package purge, PCIe audit, service tuning

- Chrome/Chromium cleanup (ADR 0006): removed 10GB chromium profile, broken PWA
  shortcuts, dead BROWSER_CDP_URL from .bashrc, restored Wayland chrome-flags.conf
- Package cleanup (ADR 0007): Tier 1-4 executed, 40 packages removed (KDE Plasma,
  ruby, love, xorg-server, kscreen/kscreenlocker), 45 cascade orphans purged
- Waybar USB module: auto-mount via udisks2, yazi integration, hover details
- Service tuning: disabled bluetooth.service, NetworkManager-wait-online.service
- hypridle fix: upgraded sdbus-cpp 2.3.0->2.3.1-1 (SEGV crash loop resolved)
- PCIe audit: GPU in wrong slot (PCIEX4 vs PCIEX16), 8x bandwidth loss documented
- D-Bus cleanup: removed stale org.kde.kwalletd6.service stub
- Ansible: all changes reflected in vars/main.yml and task files

ansible/vars/main.yml

@@ -66,10 +66,117 @@ hyprland_packages:
   - pipewire-pulse
   - wireplumber
   - pavucontrol
-  - dolphin
   - egl-wayland
   - qt5-wayland
   - qt6-wayland
+  - chafa
+  - 7zip
+  - resvg
+  - udisks2
+
+# X11 packages to remove (Wayland-only environment)
+# Tier 1: no dependents, no active use — ADR 0007
+hyprland_packages_remove:
+  # X11 clipboard (replaced by wl-clipboard)
+  - xclip
+  - xsel
+  # X11 display managers (replaced by greetd+tuigreet)
+  - lightdm
+  - lightdm-slick-greeter
+  - lightdm-settings
+  - sddm
+  - sddm-kcm
+  - sddm-breath-theme
+  # X11 video drivers (not used; Xwayland renders via Mesa)
+  - xf86-video-amdgpu
+  - xf86-video-ati
+  - xf86-video-intel
+  - xf86-video-nouveau
+  - xf86-video-vesa
+  # X11 input driver (superseded by libinput)
+  - xf86-input-synaptics
+  # X11 tools (no X11 session exists)
+  - xterm
+  - xorg-twm
+  - xorg-xinit
+  - xorg-xkill
+  - x11vnc
+  - numlockx
+  - startup-notification
+  - xorg-server-xvfb
+  # Legacy wallpaper
+  - illyria-wallpaper
+  # Redundant NTP (systemd-timesyncd is active)
+  - ntp
+  # KDE screenshot (replaced by grim+slurp+grimblast)
+  - spectacle
+  # KDE pamac tray (paru is AUR helper; pamac not running)
+  - pamac-tray-icon-plasma
+  # Tier 2: KDE Plasma stack (replaced by Hyprland native tools) — ADR 0007
+  # Dolphin and kdegraphics-thumbnailers are kept (no plasma-workspace dep)
+  - kwin
+  - plasma-desktop
+  - plasma-workspace
+  - kdeplasma-addons
+  - plasma-nm
+  - plasma-pa
+  - plasma-x11-session
+  - kde-gtk-config
+  - powerdevil
+  - xdg-desktop-portal-kde
+  - plasma-integration
+  # Dolphin file manager replaced by yazi; kdegraphics-thumbnailers was dolphin-only
+  - dolphin
+  - dolphin-plugins
+  - kdegraphics-thumbnailers
+  # Tier 2b: KDE screen management (replaced by wlr-randr/hyprlock) — ADR 0007
+  - kscreen
+  - kscreenlocker
+  # Tier 3: no active use, no dependents — ADR 0007
+  # Ruby: entire stack including subpackages (no active Ruby usage)
+  - ruby
+  - ruby-abbrev
+  - ruby-base64
+  - ruby-bigdecimal
+  - ruby-bundled-gems
+  - ruby-bundler
+  - ruby-csv
+  - ruby-debug
+  - ruby-default-gems
+  - ruby-drb
+  - ruby-erb
+  - ruby-getoptlong
+  - ruby-irb
+  - ruby-matrix
+  - ruby-minitest
+  - ruby-mutex_m
+  - ruby-net-ftp
+  - ruby-net-imap
+  - ruby-net-pop
+  - ruby-net-smtp
+  - ruby-nkf
+  - ruby-observer
+  - ruby-power_assert
+  - ruby-prime
+  - ruby-racc
+  - ruby-rake
+  - ruby-rbs
+  - ruby-rdoc
+  - ruby-repl_type_completor
+  - ruby-resolv-replace
+  - ruby-rexml
+  - ruby-rinda
+  - ruby-rss
+  - ruby-stdlib
+  - ruby-syslog
+  - ruby-test-unit
+  - ruby-typeprof
+  - rubygems
+  # LOVE game engine (no .love files on disk)
+  - love
+  # X11 server (no longer required; xorg-xwayland is independent)
+  - xorg-server
+  - xf86-input-libinput
 
 # ---------------------------------------------------------------------------
 # greetd role: display manager - minimal TUI greeter for Wayland