All function bodies in build.func are now consistently indented, improving code readability and maintainability. No logic changes were made; only whitespace and indentation were updated.
Introduces vm-manager.sh, a comprehensive Bash script for Proxmox VE to create, deploy, and list VM templates with optional cloud-init and post-install automation. Supports multiple Linux distributions, customizable resources, and post-install options for Docker, Podman, and Portainer.
Replaces manual first-boot installer injection with a Cloud-Init user-data configuration for fully automated UniFi OS Server setup. Cloud-Init is now always enabled and required, simplifying image preparation and installation monitoring. Updates messaging and installation flow to reflect Cloud-Init usage and removes legacy non-Cloud-Init support.
Disables 'unbound variable' errors at the start of the script to prevent issues with unset variables, and restores the previous shell options at the end. This ensures compatibility and avoids unexpected script failures.
Update the logic for detecting errors during base package pre-installation in unifi-os-server-vm.sh by checking for 'error' in the output. Also correct URLs in cloud-init.func to use the correct repository path.
Expanded IPv6 configuration in build.func to include a 'disable' option with clearer descriptions. Updated install.func to use IPV6_METHOD for disabling IPv6 via sysctl.d, improving clarity and control over IPv6 management.
