FoldingAtHome (#17799)

* Add foldingathome (ct)

* Clean up comments in foldingathome.sh

Removed comments about Git tags and installation process.

* Clean up comments in foldingathome-install.sh

Removed outdated comments regarding package installation and configuration.

---------

Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>
Co-authored-by: CanbiZ (MickLesk) <47820557+MickLesk@users.noreply.github.com>

install/foldingathome-install.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ) | Co-Author: 007hacky007
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/FoldingAtHome/fah-client-bastet
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+if [[ -z "${var_fah_token:-}" ]]; then
+  var_fah_token=$(prompt_password "Folding@home account token (Enter to skip):" "" 120)
+fi
+if [[ -z "${var_fah_machine_name:-}" ]]; then
+  var_fah_machine_name=$(prompt_input "Folding@home machine name:" "$(hostname)" 60)
+fi
+if [[ ${#var_fah_machine_name} -gt 64 || "$var_fah_machine_name" == *[\<\>\;\&\'\"]* ]]; then
+  msg_warn "Machine name must be 1-64 characters without <>;&'\" - using $(hostname)"
+  var_fah_machine_name=$(hostname)
+fi
+
+msg_info "Configuring Folding@home"
+mkdir -p /etc/fah-client
+cat <<EOF >/etc/fah-client/config.xml
+<config>
+  <account-token v="${var_fah_token}"/>
+  <machine-name v="${var_fah_machine_name}"/>
+</config>
+EOF
+msg_ok "Configured Folding@home"
+
+fetch_and_deploy_from_url "https://download.foldingathome.org/releases/public/fah-client/$(arch_resolve "debian-10-64bit" "debian-stable-arm64")/release/latest.deb"
+
+setup_hwaccel "fah-client"
+
+# The client detects GPUs only at startup, so restart it after setup_hwaccel.
+msg_info "Starting Folding@home"
+systemctl enable -q fah-client
+safe_service_restart fah-client
+msg_ok "Started Folding@home"
+
+motd_ssh
+customize
+cleanup_lxc