feat(pb,role,task): adds storage validation and uses it in LXC and VM deployment

tasks/storage_validation.yaml

@@ -0,0 +1,22 @@
+--- 
+
+- name: Set default storage
+  ansible.builtin.set_fact:
+    guest_storage: "main"
+
+- name: Prompt for guest storage with immediate validation
+  ansible.builtin.pause:
+    prompt: "Choose storage for root, available: main (HDD), local (PCIe NVMe SSD) [{{ guest_storage }}]"
+  register: storage_result
+  until: >
+    storage_result.user_input | length == 0 or
+    (
+      storage_result.user_input in ['main', 'local']
+    )
+  retries: 2
+  delay: 0
+
+- name: Use user input only if provided, otherwise keep the default
+  ansible.builtin.set_fact:
+    guest_storage: "{{ storage_result.user_input }}"
+  when: storage_result.user_input | length > 0