Clean up comments in budget-board.sh

Remove comments about engine sourcing and local core checkout.

ct/budget-board.sh

@@ -1,8 +1,5 @@
 #!/usr/bin/env bash
 _CS_DEFAULT_URL="https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main"
-# Engine comes from community-scripts/core; this repo only ships the scripts.
-# A local core checkout wins (COMMUNITY_SCRIPTS_CORE_DIR, else a sibling ../core),
-# so a fork or branch of core can be tested without editing this file.
 _cs_boot="${COMMUNITY_SCRIPTS_CORE_DIR:-$(dirname "${BASH_SOURCE[0]}")/../../core}/core/build.func"
 source "$_cs_boot" 2>/dev/null || source <(curl -fsSL "${COMMUNITY_SCRIPTS_CORE_URL:-https://raw.githubusercontent.com/community-scripts/core/main}/core/build.func")
 # Copyright (c) 2021-2026 community-scripts ORG
@@ -17,6 +14,7 @@ var_ram="${var_ram:-2048}"
 var_disk="${var_disk:-8}"
 var_os="${var_os:-debian}"
 var_version="${var_version:-13}"
+#var_arm64="${var_arm64:-no}" # unset = ask the user; set yes/no only when verified
 var_unprivileged="${var_unprivileged:-1}"
 
 header_info "$APP"