feat: add S3-compatible storage provider (MinIO, Ceph, R2, etc.)

Adds a new 'S3-Compatible Storage' provider that works with any
S3-API-compatible object storage service, including MinIO, Ceph,
Cloudflare R2, Backblaze B2, and others.

Changes:
- New provider class: classes/providers/storage/s3-compatible-provider.php
  - Provider key: s3compatible
  - Reads user-configured endpoint URL from settings
  - Uses path-style URL access (required by most S3-compatible services)
  - Supports credentials via AS3CF_S3COMPAT_ACCESS_KEY_ID /
    AS3CF_S3COMPAT_SECRET_ACCESS_KEY wp-config.php constants
  - Disables AWS-specific features (Block Public Access, Object Ownership)
- New provider SVG icons (s3compatible.svg, -link.svg, -round.svg)
- Registered provider in main plugin class with endpoint setting support
- Updated StorageProviderSubPage to show endpoint URL input for S3-compatible
- Built pro settings bundle with rollup (Svelte 4.2.19)
- Added package.json and updated rollup.config.mjs for pro-only builds

amazon-s3-and-cloudfront-pro.php

@@ -0,0 +1,117 @@
+<?php
+/*
+Plugin Name: WP Offload Media
+Plugin URI: https://deliciousbrains.com/wp-offload-media/
+Update URI: https://deliciousbrains.com/wp-offload-media/
+Description: Speed up your WordPress site by offloading your media and assets to Amazon S3, DigitalOcean Spaces or Google Cloud Storage and a CDN.
+Author: Delicious Brains
+Version: 3.2.12
+Author URI: https://deliciousbrains.com/
+Update URI: false
+Network: True
+Text Domain: amazon-s3-and-cloudfront
+Domain Path: /languages/
+
+// Copyright (c) 2015 Delicious Brains. All rights reserved.
+//
+// Released under the GPL license
+// http://www.opensource.org/licenses/gpl-license.php
+//
+// **********************************************************************
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// **********************************************************************
+//
+*/
+
+// phpcs:disable SlevomatCodingStandard.Variables.UnusedVariable
+
+if ( ! function_exists( 'as3cf_pro_init' ) ) {
+	// Defines the path to the main plugin file.
+	define( 'AS3CFPRO_FILE', __FILE__ );
+
+	// Defines the path to be used for includes.
+	define( 'AS3CFPRO_PATH', plugin_dir_path( AS3CFPRO_FILE ) );
+
+	require_once AS3CFPRO_PATH . 'version.php';
+	require_once AS3CFPRO_PATH . 'classes/as3cf-compatibility-check.php';
+	require_once AS3CFPRO_PATH . 'classes/pro/as3cf-pro-installer.php';
+	require_once AS3CFPRO_PATH . 'classes/pro/as3cf-pro-plugin-installer.php';
+
+	add_action( 'activated_plugin', array( 'AS3CF_Compatibility_Check', 'deactivate_other_instances' ) );
+
+	global $as3cfpro_compat_check;
+	$as3cfpro_compat_check = new AS3CF_Pro_Installer( AS3CFPRO_FILE );
+
+	/**
+	 * @throws Exception
+	 */
+	function as3cf_pro_init() {
+		if ( class_exists( 'Amazon_S3_And_CloudFront_Pro' ) ) {
+			return;
+		}
+
+		global $as3cfpro_compat_check, $as3cf_compat_check;
+		$as3cf_compat_check = $as3cfpro_compat_check;
+
+		if ( ! $as3cfpro_compat_check->is_compatible() ) {
+			return;
+		}
+
+		if (
+			method_exists( 'AS3CF_Compatibility_Check', 'is_plugin_active' ) &&
+			$as3cfpro_compat_check->is_plugin_active( 'amazon-s3-and-cloudfront/wordpress-s3.php' )
+		) {
+			// Deactivate WP Offload Lite if activated.
+			AS3CF_Compatibility_Check::deactivate_other_instances( 'amazon-s3-and-cloudfront-pro/amazon-s3-and-cloudfront-pro.php' );
+		}
+
+		global $as3cf, $as3cfpro;
+
+		// Autoloader.
+		require_once AS3CFPRO_PATH . 'wp-offload-media-autoloader.php';
+		new WP_Offload_Media_Autoloader( 'WP_Offload_Media', AS3CFPRO_PATH );
+
+		// Lite files
+		require_once AS3CFPRO_PATH . 'include/functions.php';
+		require_once AS3CFPRO_PATH . 'classes/as3cf-utils.php';
+		require_once AS3CFPRO_PATH . 'classes/as3cf-error.php';
+		require_once AS3CFPRO_PATH . 'classes/as3cf-filter.php';
+		require_once AS3CFPRO_PATH . 'classes/filters/as3cf-local-to-s3.php';
+		require_once AS3CFPRO_PATH . 'classes/filters/as3cf-s3-to-local.php';
+		require_once AS3CFPRO_PATH . 'classes/as3cf-notices.php';
+		require_once AS3CFPRO_PATH . 'classes/as3cf-plugin-base.php';
+		require_once AS3CFPRO_PATH . 'classes/as3cf-plugin-compatibility.php';
+		require_once AS3CFPRO_PATH . 'classes/amazon-s3-and-cloudfront.php';
+		// Pro files
+		require_once AS3CFPRO_PATH . 'vendor/deliciousbrains/autoloader.php';
+		require_once AS3CFPRO_PATH . 'classes/pro/as3cf-pro-licences-updates.php';
+		require_once AS3CFPRO_PATH . 'classes/pro/amazon-s3-and-cloudfront-pro.php';
+		require_once AS3CFPRO_PATH . 'classes/pro/as3cf-pro-plugin-compatibility.php';
+		require_once AS3CFPRO_PATH . 'classes/pro/as3cf-pro-utils.php';
+		require_once AS3CFPRO_PATH . 'classes/pro/as3cf-async-request.php';
+		require_once AS3CFPRO_PATH . 'classes/pro/as3cf-background-process.php';
+
+		// Load settings and core components.
+		$as3cf    = new Amazon_S3_And_CloudFront_Pro( AS3CFPRO_FILE );
+		$as3cfpro = $as3cf; // Pro global alias
+
+		// Initialize managers and their registered components.
+		do_action( 'as3cf_init', $as3cf );
+		do_action( 'as3cf_pro_init', $as3cf );
+
+		// Set up initialized components, e.g. add integration hooks.
+		do_action( 'as3cf_setup', $as3cf );
+		do_action( 'as3cf_pro_setup', $as3cf );
+
+		// Plugin is ready to rock, let 3rd parties know.
+		do_action( 'as3cf_ready', $as3cf );
+		do_action( 'as3cf_pro_ready', $as3cf );
+	}
+
+	add_action( 'init', 'as3cf_pro_init' );
+
+	// If AWS still active need to be around to satisfy addon version checks until upgraded.
+	add_action( 'aws_init', 'as3cf_pro_init', 11 );
+}