feat: improve script execution and local file handling

- Fix lxc-attach command in build.func line 1341 to use pct exec for consistency
- Add alternative lxc-attach method for script execution using local files
- Fix FUNCTIONS_FILE_PATH to include core.func, tools.func, and install.func content
- Replace GitHub curl downloads with local file sources in build.func
- Update install.func to work with FUNCTIONS_FILE_PATH approach
- Add support for local config-file.func and alpine-install.func
- Add new install scripts: 2fauth-install.sh and alpine-install.sh
- Add new CT scripts: 2fauth.sh and alpine.sh

This improves script execution reliability and removes dependency on GitHub downloads.

scripts/ct/2fauth.sh

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+SCRIPT_DIR="$(dirname "$0")" 
+source "$SCRIPT_DIR/../core/build.func"
+# Copyright (c) 2021-2025 community-scripts ORG
+# Author: jkrgr0
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://docs.2fauth.app/
+
+APP="2FAuth"
+var_tags="${var_tags:-2fa;authenticator}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-2}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-12}"
+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 "/opt/2fauth" ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+  if check_for_gh_release "2fauth" "Bubka/2FAuth"; then
+    $STD apt-get update
+    $STD apt-get -y upgrade
+
+    msg_info "Creating Backup"
+    mv "/opt/2fauth" "/opt/2fauth-backup"
+    if ! dpkg -l | grep -q 'php8.3'; then
+      cp /etc/nginx/conf.d/2fauth.conf /etc/nginx/conf.d/2fauth.conf.bak
+    fi
+    msg_ok "Backup Created"
+
+    if ! dpkg -l | grep -q 'php8.3'; then
+      $STD apt-get install -y \
+        lsb-release \
+        gnupg2
+      PHP_VERSION="8.3" PHP_MODULE="common,ctype,fileinfo,mysql,cli" PHP_FPM="YES" setup_php
+      sed -i 's/php8.2/php8.3/g' /etc/nginx/conf.d/2fauth.conf
+    fi
+    fetch_and_deploy_gh_release "2fauth" "Bubka/2FAuth"
+    setup_composer
+    mv "/opt/2fauth-backup/.env" "/opt/2fauth/.env"
+    mv "/opt/2fauth-backup/storage" "/opt/2fauth/storage"
+    cd "/opt/2fauth" || return
+    chown -R www-data: "/opt/2fauth"
+    chmod -R 755 "/opt/2fauth"
+    export COMPOSER_ALLOW_SUPERUSER=1
+    $STD composer install --no-dev --prefer-source
+    php artisan 2fauth:install
+    $STD systemctl restart nginx
+
+    msg_info "Cleaning Up"
+    if dpkg -l | grep -q 'php8.2'; then
+      $STD apt-get remove --purge -y php8.2*
+    fi
+    $STD apt-get -y autoremove
+    $STD apt-get -y autoclean
+    msg_ok "Cleanup Completed"
+    msg_ok "Updated Successfully"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${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}:80${CL}"

scripts/ct/alpine.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+SCRIPT_DIR="$(dirname "$0")" 
+source "$SCRIPT_DIR/../core/build.func"
+# Copyright (c) 2021-2025 tteck
+# Author: tteck (tteckster)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://alpinelinux.org/
+
+APP="Alpine"
+var_tags="${var_tags:-os;alpine}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-1}"
+var_os="${var_os:-alpine}"
+var_version="${var_version:-3.22}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  UPD=$(
+    whiptail --backtitle "Proxmox VE Helper Scripts" --title "SUPPORT" --radiolist --cancel-button Exit-Script "Spacebar = Select" 11 58 1 \
+      "1" "Check for Alpine Updates" ON \
+      3>&1 1>&2 2>&3
+  )
+
+  header_info
+  if [ "$UPD" == "1" ]; then
+    $STD apk -U upgrade
+    exit
+  fi
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"