Initialize HOME variable for script execution

Set HOME variable if not already defined to prevent script failures.

misc/core.func

@@ -15,10 +15,6 @@
 [[ -n "${_CORE_FUNC_LOADED:-}" ]] && return
 _CORE_FUNC_LOADED=1
 
-# The shell behind the Proxmox web UI (xterm.js) starts without HOME. Every
-# version file and toolchain here is resolved beneath it, and under `set -u` the
-# first expansion aborts the script instead of falling back. Anchor it once so
-# the ~40 expansions downstream do not each need a guard.
 if [[ -z "${HOME:-}" ]]; then
   HOME="$(getent passwd "$(id -u)" 2>/dev/null | cut -d: -f6)"
   export HOME="${HOME:-/root}"