fix(runtime): migrate roles to nested system fields

roles/system_check/tasks/main.yml

@@ -79,7 +79,7 @@
         quiet: true
 
 - name: VM existence protection check
-  when: install_type == "virtual"
+  when: system_cfg.type == "virtual"
   block:
     - name: Check if VM already exists on libvirt
       when: hypervisor_type == "libvirt"
@@ -110,7 +110,7 @@
         api_host: "{{ hypervisor_cfg.url }}"
         api_user: "{{ hypervisor_cfg.username }}"
         api_password: "{{ hypervisor_cfg.password }}"
-        node: "{{ hypervisor_cfg.node }}"
+        node: "{{ hypervisor_cfg.host }}"
         vmid: "{{ system_cfg.id }}"
         name: "{{ hostname }}"
         type: qemu