Add background and USB consent with XDG session autostart

packaging/ferese-session-shell

@@ -3,8 +3,13 @@ set -euo pipefail
 session_target_started=0
 shell_pid=
 agent_pid=
+autostart_pid=
 cleanup() {
     trap - EXIT INT TERM
+    if [[ -n $autostart_pid ]]; then
+        kill "$autostart_pid" 2>/dev/null || true
+        wait "$autostart_pid" 2>/dev/null || true
+    fi
     if [[ -n $shell_pid ]]; then kill "$shell_pid" 2>/dev/null || true; fi
     if [[ -n $agent_pid ]]; then
         kill "$agent_pid" 2>/dev/null || true
@@ -53,6 +58,11 @@ env -u WAYLAND_SOCKET WAYLAND_DISPLAY="${FERESE_PUBLIC_WAYLAND_DISPLAY:-${WAYLAN
 agent_pid=$!
 "$release_dir/ferese-shell" &
 shell_pid=$!
+if [[ ${FERESE_SESSION_IMPORT_ENV:-0} == 1 && -x $release_dir/feresectl ]]; then
+    env WAYLAND_DISPLAY="${FERESE_PUBLIC_WAYLAND_DISPLAY:-${WAYLAND_DISPLAY:-}}" \
+        "$release_dir/feresectl" autostart &
+    autostart_pid=$!
+fi
 if wait "$shell_pid"; then
     status=0
 else

packaging/portal/ferese-portals.conf

@@ -4,3 +4,5 @@ org.freedesktop.impl.portal.ScreenCast=ferese;
 org.freedesktop.impl.portal.Settings=ferese;
 org.freedesktop.impl.portal.Screenshot=ferese;
 org.freedesktop.impl.portal.Wallpaper=ferese;
+org.freedesktop.impl.portal.Background=ferese;
+org.freedesktop.impl.portal.Usb=ferese;

packaging/portal/ferese.portal

@@ -1,4 +1,4 @@
 [portal]
 DBusName=org.freedesktop.impl.portal.desktop.ferese
-Interfaces=org.freedesktop.impl.portal.ScreenCast;org.freedesktop.impl.portal.Settings;org.freedesktop.impl.portal.Screenshot;org.freedesktop.impl.portal.Wallpaper;
+Interfaces=org.freedesktop.impl.portal.ScreenCast;org.freedesktop.impl.portal.Settings;org.freedesktop.impl.portal.Screenshot;org.freedesktop.impl.portal.Wallpaper;org.freedesktop.impl.portal.Background;org.freedesktop.impl.portal.Usb;
 UseIn=Ferese;