Add Dokploy install and container scripts

Introduces Dokploy support with installation and container setup scripts, and adds metadata for frontend integration. These changes enable automated deployment and management of Dokploy as a container, including resource configuration and update handling.

ct/dokploy.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVED/main/misc/build.func)
+# Copyright (c) 2021-2025 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Source: https://dokploy.com/
+
+APP="Dokploy"
+var_tags="${var_tags:-docker;paas}"
+var_cpu="${var_cpu:-2}"
+var_ram="${var_ram:-2048}"
+var_disk="${var_disk:-10}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -d /etc/dokploy ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  msg_info "Updating Dokploy"
+  $STD bash <(curl -sSL https://dokploy.com/install.sh)
+  msg_ok "Updated Dokploy"
+  msg_ok "Updated successfully!"
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:3000${CL}"