Improve boot UX: status display, faster GUI, loading spinner

- Add bee-boot-status service: shows live service status on tty1 with
  ASCII logo before getty, exits when all bee services settle
- Remove lightdm dependency on bee-preflight so GUI starts immediately
  without waiting for NVIDIA driver load
- Replace Chromium blank-page problem with /loading spinner page that
  polls /api/services and auto-redirects when services are ready; add
  "Open app now" override button; use fresh --user-data-dir=/tmp/bee-chrome
- Unify branding: add "Hardware Audit LiveCD" subtitle to GRUB menu,
  bee-boot-status (with yellow ASCII logo), and web spinner

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

iso/builder/config/bootloaders/grub-pc/grub.cfg

@@ -7,6 +7,7 @@ echo "  █████╗  ███████║███████╗ ╚
 echo "  ██╔══╝  ██╔══██║╚════██║  ╚██╔╝  ╚════╝██╔══██╗██╔══╝  ██╔══╝"
 echo "  ███████╗██║  ██║███████║   ██║         ██████╔╝███████╗███████╗"
 echo "  ╚══════╝╚═╝  ╚═╝╚══════╝   ╚═╝         ╚═════╝ ╚══════╝╚══════╝"
+echo "  Hardware Audit LiveCD"
 echo ""
 
 menuentry "EASY-BEE" {

iso/builder/config/hooks/normal/9000-bee-setup.hook.chroot

@@ -31,6 +31,7 @@ systemctl enable bee-audit.service
 systemctl enable bee-web.service
 systemctl enable bee-sshsetup.service
 systemctl enable bee-selfheal.timer
+systemctl enable bee-boot-status.service
 systemctl enable ssh.service
 systemctl enable lightdm.service 2>/dev/null || true
 systemctl enable qemu-guest-agent.service 2>/dev/null || true
@@ -59,7 +60,8 @@ chmod +x /usr/local/bin/bee-sshsetup   2>/dev/null || true
 chmod +x /usr/local/bin/bee-smoketest  2>/dev/null || true
 chmod +x /usr/local/bin/bee            2>/dev/null || true
 chmod +x /usr/local/bin/bee-log-run    2>/dev/null || true
-chmod +x /usr/local/bin/bee-selfheal   2>/dev/null || true
+chmod +x /usr/local/bin/bee-selfheal      2>/dev/null || true
+chmod +x /usr/local/bin/bee-boot-status  2>/dev/null || true
 if [ "$GPU_VENDOR" = "nvidia" ]; then
     chmod +x /usr/local/bin/bee-nvidia-load 2>/dev/null || true
     chmod +x /usr/local/bin/bee-gpu-burn 2>/dev/null || true