Fix issues found testing stage 5 in a VM

- Calamares branding takes the version from VERSION at ISO build time
- das-update tray hides its icon when updates were installed elsewhere
  (watches the xbps package database)
- Installer removes guest tools of other hypervisors; the live image
  starts VBoxClient only inside VirtualBox
- Live session no longer locks the screen while the installer runs
- das-tools 0.2.0, das-installer 0.2.0, das-settings 0.4.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

srcpkgs/das-settings/files/bin/das-session-init

@@ -4,6 +4,21 @@
 # which is only known inside the session. Runs once per user.
 set -u
 
+# Sets an xfconf property, creating it when it does not exist yet.
+set_prop() {
+  local channel=$1 prop=$2 type=$3 value=$4
+  xfconf-query -c "$channel" -p "$prop" -s "$value" 2>/dev/null ||
+    xfconf-query -c "$channel" -p "$prop" -n -t "$type" -s "$value"
+}
+
+# The live session must not lock the screen: the installer runs for minutes
+# without input, and the live user's password is not something people know.
+# Static files would reach the installed system, which copies the live image.
+if grep -q '\(^\| \)root=live:' /proc/cmdline; then
+  set_prop xfce4-screensaver /lock/enabled bool false
+  set_prop xfce4-power-manager /xfce4-power-manager/lock-screen-suspend-hibernate bool false
+fi
+
 marker="${XDG_CONFIG_HOME:-$HOME/.config}/das/session-init.done"
 [[ -e $marker ]] && exit 0
 
@@ -12,13 +27,6 @@ if [[ $(xfconf-query -c xsettings -p /Net/ThemeName 2>/dev/null) == *-Dark ]]; t
   wallpaper=/usr/share/backgrounds/das/das-dark.svg
 fi
 
-# Sets an xfconf property, creating it when it does not exist yet.
-set_prop() {
-  local prop=$1 type=$2 value=$3
-  xfconf-query -c xfce4-desktop -p "$prop" -s "$value" 2>/dev/null ||
-    xfconf-query -c xfce4-desktop -p "$prop" -n -t "$type" -s "$value"
-}
-
 # "xrandr --listactivemonitors" prints a header, then one line per monitor ending in its connector name.
 monitors=$(xrandr --listactivemonitors 2>/dev/null | awk 'NR > 1 { print $NF }')
 if [[ -z $monitors ]]; then
@@ -28,8 +36,8 @@ fi
 
 for monitor in $monitors; do
   base="/backdrop/screen0/monitor${monitor}/workspace0"
-  set_prop "$base/last-image" string "$wallpaper"
-  set_prop "$base/image-style" int 5 # zoomed: fill the screen, keep proportions
+  set_prop xfce4-desktop "$base/last-image" string "$wallpaper"
+  set_prop xfce4-desktop "$base/image-style" int 5 # zoomed: fill the screen, keep proportions
 done
 
 mkdir -p "${marker%/*}" && touch "$marker"

srcpkgs/das-settings/template

@@ -4,7 +4,7 @@
 # Defaults go to /etc/xdg/das, which /etc/profile.d/das-xdg.sh puts in front of
 # /etc/xdg: stock Xfce files stay untouched and users' own changes still win.
 pkgname=das-settings
-version=0.3.0
+version=0.4.0
 revision=1
 create_wrksrc=yes
 depends="das-theme lightdm lightdm-gtk-greeter xfce4-notifyd xfce4-panel