AirTrail (#16713)

* Add airtrail (ct)

* Clean up comments in airtrail.sh

Remove comments about the engine and local core checkout.

---------

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/airtrail-install.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/johanohly/AirTrail
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+NODE_VERSION="22" setup_nodejs
+
+msg_info "Installing Bun"
+export BUN_INSTALL="/root/.bun"
+curl -fsSL https://bun.sh/install | $STD bash
+ln -sf /root/.bun/bin/bun /usr/local/bin/bun
+ln -sf /root/.bun/bin/bunx /usr/local/bin/bunx
+msg_ok "Installed Bun"
+
+PG_VERSION="16" setup_postgresql
+PG_DB_NAME="airtrail" PG_DB_USER="airtrail" setup_postgresql_db
+
+fetch_and_deploy_gh_release "airtrail" "johanohly/AirTrail" "tarball" "latest" "/opt/airtrail"
+
+msg_info "Configuring AirTrail"
+mkdir -p /opt/airtrail/uploads
+cat <<EOF >/opt/airtrail/.env
+NODE_ENV=production
+DB_URL=postgres://${PG_DB_USER}:${PG_DB_PASS}@localhost:5432/${PG_DB_NAME}
+ORIGIN=http://${LOCAL_IP}:3000
+BODY_SIZE_LIMIT=20M
+UPLOAD_LOCATION=/opt/airtrail/uploads
+EOF
+msg_ok "Configured AirTrail"
+
+msg_info "Building AirTrail (Patience)"
+cd /opt/airtrail
+$STD bun install --frozen-lockfile
+export NODE_ENV=production
+$STD bun run build
+$STD bun install --frozen-lockfile --production
+msg_ok "Built AirTrail"
+
+msg_info "Creating Service"
+cat <<EOF >/etc/systemd/system/airtrail.service
+[Unit]
+Description=AirTrail
+After=network.target postgresql.service
+Wants=postgresql.service
+
+[Service]
+Type=simple
+WorkingDirectory=/opt/airtrail
+EnvironmentFile=/opt/airtrail/.env
+ExecStartPre=/usr/bin/node /opt/airtrail/docker/migrate.js
+ExecStart=/usr/bin/node /opt/airtrail/build
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl enable -q --now airtrail
+msg_ok "Created Service"
+
+motd_ssh
+customize
+cleanup_lxc