Update ISO installer tiers and backend deployment

autoinstall/user-data

@@ -85,10 +85,11 @@ autoinstall:
     # mirrors instead of the custom ISO content.
     - sed -i 's/^deb cdrom:/# deb cdrom:/' /target/etc/apt/sources.list || true
 
-    # Install the Cezen AI payload from the ISO first. Fall back to Git only
-    # when building from older media that does not contain /cdrom/cezen-aipackage.
+    # Pull the Nexus One AI installer from cgit. The ISO intentionally does not
+    # bundle the full package, keeping the image small and the installed code
+    # current at deployment time.
     - mkdir -p /target/opt/aipackage
-    - cp -a /cdrom/cezen-aipackage/. /target/opt/aipackage/ || git clone https://cgit.cezentech.com/jinojose/aipackage.git /target/opt/aipackage
+    - git clone https://cgit.cezentech.com/jinojose/aipackage.git /target/opt/aipackage
 
     # Deploy the console setup wizard
     - mkdir -p /target/opt/cezen
@@ -104,23 +105,18 @@ autoinstall:
     - |
       cat > /target/etc/systemd/system/cezen-setup.service << 'EOF'
       [Unit]
-      Description=Cezen AI Suite — Console Setup Wizard
+      Description=Nexus One AI — Console Setup Wizard
       After=cloud-final.service cloud-init.target network-online.target
       Wants=cloud-init.target network-online.target
-      Conflicts=getty@tty1.service
       ConditionPathExists=!/opt/cezen/.setup-done
+      OnFailure=getty@tty1.service
 
       [Service]
-      Type=idle
-      ExecStartPre=-/usr/bin/systemctl stop getty@tty1.service
-      ExecStart=/bin/bash -lc 'clear >/dev/tty1 2>/dev/null || true; exec /opt/cezen/firstboot-setup.sh'
-      StandardInput=tty-force
-      StandardOutput=tty
-      StandardError=tty
-      TTYPath=/dev/tty1
-      TTYReset=yes
-      TTYVHangup=yes
-      TTYVTDisallocate=yes
+      Type=oneshot
+      WorkingDirectory=/opt/cezen
+      ExecStart=/bin/bash -lc 'clear >/dev/tty1 2>/dev/null || true; /usr/bin/openvt -c 1 -f -w -- env TERM=linux /opt/cezen/firstboot-setup.sh'
+      StandardOutput=journal+console
+      StandardError=journal+console
       Restart=no
 
       [Install]