refactor(vars): enforce nested system and hypervisor schema

roles/global_defaults/tasks/main.yml

@@ -48,8 +48,8 @@
     chroot_command: >-
       {{
         'systemd-nspawn -D /mnt'
-        if chroot_tool == 'systemd-nspawn'
-        else chroot_tool ~ ' /mnt'
+        if (system_cfg.features.chroot.tool | default('arch-chroot')) == 'systemd-nspawn'
+        else (system_cfg.features.chroot.tool | default('arch-chroot')) ~ ' /mnt'
       }}
   changed_when: false
 
@@ -63,12 +63,12 @@
 
 - name: Set SSH access
   when:
-    - install_type == "virtual"
+    - system_cfg.type == "virtual"
     - hypervisor_type != "vmware"
   ansible.builtin.set_fact:
-    ansible_user: "{{ user_name }}"
-    ansible_password: "{{ user_password }}"
-    ansible_become_password: "{{ user_password }}"
+    ansible_user: "{{ system_cfg.user.name }}"
+    ansible_password: "{{ system_cfg.user.password }}"
+    ansible_become_password: "{{ system_cfg.user.password }}"
     ansible_ssh_extra_args: "-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
   changed_when: false