Update .gitignore and refactor Ubuntu template playbook to use role for Proxmox template management

ansible/roles/proxmox_provision/defaults/main.yml

@@ -0,0 +1,23 @@
+---
+# Defaults for proxmox_provision role
+
+# Connection Details (fallbacks, but ideally inherited from inventory group_vars)
+proxmox_api_host: "{{ ansible_host | default(inventory_hostname) }}"
+proxmox_node: "{{ inventory_hostname }}"
+
+# VM Details
+vmid: 0 # 0 lets Proxmox choose next available, or specify fixed ID
+vm_name: "new-vm"
+template_name: "ubuntu-2204-cloud"
+vm_memory: 2048
+vm_cores: 2
+vm_storage: "local-lvm"
+vm_net_bridge: "vmbr0"
+
+# Cloud Init / User Data
+ci_user: "ubuntu"
+# ssh_keys should be a list of public keys
+ssh_keys: []
+
+# State
+vm_state: started