fix(desktop): start X on vt1 from .profile for IPMI KVM compatibility

startx from autologin shell targets VT1 directly — KVM sees the
graphical UI without VT switching. Remove bee-desktop.service
(systemd-launched X defaults to VT7, invisible on KVM).
Add xserver-xorg-video-fbdev for server AST/VGA framebuffer.

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

iso/overlay/home/bee/.profile

@@ -1 +1,8 @@
 export PATH="/usr/local/bin:$PATH"
+
+# On tty1 (IPMI KVM console): start X desktop directly on VT1
+# so the KVM shows the graphical UI without switching VTs.
+if [ "$(tty 2>/dev/null)" = "/dev/tty1" ] \
+    && [ -z "${DISPLAY:-}" ]; then
+    exec startx /usr/local/bin/bee-openbox-session -- :0 vt1 -nolisten tcp
+fi