scripts: add remove_i3.sh to purge i3 packages and dotfiles

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/remove_i3.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+# Rimuove i3 e relativi dotfiles dall'host corrente.
+# Eseguire dopo aver verificato che sway funzioni correttamente.
+set -e
+
+HOSTNAME=$(hostname)
+
+# Pacchetti i3-only (dunst e rofi sono condivisi con sway, non rimossi)
+sudo xbps-remove -R arandr autorandr feh i3 i3blocks i3blocks-blocklets \
+  i3lock-color i3status picom polybar scrot setxkbmap volumeicon xclip \
+  xfce4-clipman-plugin xfce4-screenshooter xkbutils xorg-fonts xorg-minimal \
+  xss-lock xdotool
+
+# Dotfiles i3-only
+rm -rf ~/.config/i3 ~/.config/i3blocks
+rm -f  ~/.config/picom/picom.conf
+rmdir  --ignore-fail-on-non-empty ~/.config/picom
+rm -f  ~/.config/polybar/config.ini ~/.config/polybar/launch.sh
+rmdir  --ignore-fail-on-non-empty ~/.config/polybar
+rm -f  ~/.xinitrc
+
+# Session file emptty
+sudo rm -f /etc/emptty/xsessions/i3.desktop
+
+# Dotfiles host-specifici
+case "$HOSTNAME" in
+  ikaros|nymph)
+    rm -rf ~/.config/autorandr
+    ;;
+esac