feat(2meet-data-optimizer): warn when HivePress / WooCommerce run without their AddOn

- TMDO_Compatibility::missing_integration_addons() reports active HivePress / WooCommerce whose AddOn bootstrap class is absent
- Surface it as Site Health test wpdo_missing_integration_addons (also on the admin Doctor tab) and an administrator notice (TMDO_Missing_Addons_Notice)
- Verify: MissingIntegrationAddonsTest (5, class stand-ins in separate processes); core unit 651 / integration 449, HP 148, WC 10 OK; read-only check: dev20/21 HivePress+WooCommerce, dev22 HivePress, others clean
- PR: PR-035

admin/class-tmdo-admin.php

@@ -2895,7 +2895,7 @@ wpdo.getListings({ per_page: 3 }).then(r => console.log(r));'
 		?>
 		<h2><?php esc_html_e( '健康檢查（Doctor）', '2meet-data-optimizer' ); ?></h2>
 		<p class="description">
-			<?php esc_html_e( '9 項自我診斷檢查：schema 完整性、錯誤預算、hook 衝突、autoload 大小、postmeta 爆量、orphan zone rows、缺少快照、實體群組名稱衝突、孤兒實體群組。', '2meet-data-optimizer' ); ?>
+			<?php esc_html_e( '10 項自我診斷檢查：schema 完整性、錯誤預算、hook 衝突、autoload 大小、postmeta 爆量、orphan zone rows、缺少快照、實體群組名稱衝突、孤兒實體群組、缺少對應 AddOn。', '2meet-data-optimizer' ); ?>
 		</p>
 		<p>
 			<a class="button" href="<?php echo esc_url( admin_url( 'site-health.php' ) ); ?>">
@@ -2909,15 +2909,16 @@ wpdo.getListings({ per_page: 3 }).then(r => console.log(r));'
 		}
 
 		$tests = array(
-			'wpdo_schema_drift'            => array( 'check_schema_drift', __( 'Schema 完整性', '2meet-data-optimizer' ) ),
-			'wpdo_error_budget'            => array( 'check_error_budget', __( '錯誤預算（過去 7 天）', '2meet-data-optimizer' ) ),
-			'wpdo_hook_conflicts'          => array( 'check_hook_conflicts', __( 'Hook 衝突', '2meet-data-optimizer' ) ),
-			'wpdo_autoload_bloat'          => array( 'check_autoload_bloat', __( 'Autoload 大小', '2meet-data-optimizer' ) ),
-			'wpdo_postmeta_explosion'      => array( 'check_postmeta_explosion', __( 'wp_postmeta 爆量', '2meet-data-optimizer' ) ),
-			'wpdo_orphan_zone_rows'        => array( 'check_orphan_zone_rows', __( 'Orphan zone rows', '2meet-data-optimizer' ) ),
-			'wpdo_missing_snapshot'        => array( 'check_missing_snapshot', __( '缺少最近快照', '2meet-data-optimizer' ) ),
-			'wpdo_entity_group_collisions' => array( 'check_entity_group_collisions', __( '實體群組名稱衝突', '2meet-data-optimizer' ) ),
-			'wpdo_orphaned_entity_groups'  => array( 'check_orphaned_entity_groups', __( '孤兒實體群組', '2meet-data-optimizer' ) ),
+			'wpdo_schema_drift'               => array( 'check_schema_drift', __( 'Schema 完整性', '2meet-data-optimizer' ) ),
+			'wpdo_error_budget'               => array( 'check_error_budget', __( '錯誤預算（過去 7 天）', '2meet-data-optimizer' ) ),
+			'wpdo_hook_conflicts'             => array( 'check_hook_conflicts', __( 'Hook 衝突', '2meet-data-optimizer' ) ),
+			'wpdo_autoload_bloat'             => array( 'check_autoload_bloat', __( 'Autoload 大小', '2meet-data-optimizer' ) ),
+			'wpdo_postmeta_explosion'         => array( 'check_postmeta_explosion', __( 'wp_postmeta 爆量', '2meet-data-optimizer' ) ),
+			'wpdo_orphan_zone_rows'           => array( 'check_orphan_zone_rows', __( 'Orphan zone rows', '2meet-data-optimizer' ) ),
+			'wpdo_missing_snapshot'           => array( 'check_missing_snapshot', __( '缺少最近快照', '2meet-data-optimizer' ) ),
+			'wpdo_entity_group_collisions'    => array( 'check_entity_group_collisions', __( '實體群組名稱衝突', '2meet-data-optimizer' ) ),
+			'wpdo_orphaned_entity_groups'     => array( 'check_orphaned_entity_groups', __( '孤兒實體群組', '2meet-data-optimizer' ) ),
+			'wpdo_missing_integration_addons' => array( 'check_missing_integration_addons', __( '缺少對應 AddOn', '2meet-data-optimizer' ) ),
 		);
 		?>
 		<table class="widefat striped">

admin/class-tmdo-help-tabs.php

@@ -183,7 +183,7 @@ class TMDO_Help_Tabs {
 	 * @return string
 	 */
 	private static function content_doctor(): string {
-		return '<p>' . esc_html__( '9 項自動健康檢查：', '2meet-data-optimizer' ) . '</p>'
+		return '<p>' . esc_html__( '10 項自動健康檢查：', '2meet-data-optimizer' ) . '</p>'
 			. '<ol class="wpdo-list-disc">'
 			. '<li><strong>schema_drift</strong> — ' . esc_html__( '所有 v2 表是否存在', '2meet-data-optimizer' ) . '</li>'
 			. '<li><strong>error_budget</strong> — ' . esc_html__( '7 天內 wp_wpdo_errors 行數', '2meet-data-optimizer' ) . '</li>'
@@ -194,6 +194,7 @@ class TMDO_Help_Tabs {
 			. '<li><strong>missing_snapshot</strong> — ' . esc_html__( '在 cutover/cleanup/complete 但 7 天沒 snapshot', '2meet-data-optimizer' ) . '</li>'
 			. '<li><strong>entity_group_collisions</strong> — ' . esc_html__( '同名實體群組被不同外掛以不同欄位註冊（後者被忽略）', '2meet-data-optimizer' ) . '</li>'
 			. '<li><strong>orphaned_entity_groups</strong> — ' . esc_html__( '扁平表還在但已無外掛註冊的群組（已依保存的定義還原以維持可讀）', '2meet-data-optimizer' ) . '</li>'
+			. '<li><strong>missing_integration_addons</strong> — ' . esc_html__( 'HivePress / WooCommerce 已啟用但對應 AddOn 未啟用', '2meet-data-optimizer' ) . '</li>'
 			. '</ol>'
 			. '<p>' . esc_html__( '結果有 5 分鐘 transient cache，剛操作完想立刻看新值請等下個週期。', '2meet-data-optimizer' ) . '</p>';
 	}

admin/class-tmdo-missing-addons-notice.php

@@ -0,0 +1,62 @@
+<?php
+/**
+ * Admin notice when HivePress / WooCommerce run without their AddOn.
+ *
+ * Core knows nothing about either plugin; their fields are only optimised by
+ * the matching AddOn. Without it, aeav_only data stays readable only through
+ * the orphan-group restore, and new data is not optimised at all.
+ *
+ * @package WP_Data_Optimizer
+ */
+
+declare(strict_types=1);
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+/**
+ * Warns administrators about integrations whose AddOn is not active.
+ */
+final class TMDO_Missing_Addons_Notice {
+
+	/**
+	 * Hook the notice.
+	 *
+	 * @return void
+	 */
+	public static function register(): void {
+		add_action( 'admin_notices', array( __CLASS__, 'render' ) );
+	}
+
+	/**
+	 * Print the notice for administrators when an integration lacks its AddOn.
+	 *
+	 * @return void
+	 */
+	public static function render(): void {
+		if ( ! current_user_can( 'manage_options' ) ) {
+			return;
+		}
+		$missing = TMDO_Compatibility::missing_integration_addons();
+		if ( empty( $missing ) ) {
+			return;
+		}
+
+		$lines = array();
+		foreach ( $missing as $plugin => $addon ) {
+			$lines[] = sprintf( '%s → %s', $plugin, $addon );
+		}
+		printf(
+			'<div class="notice notice-warning"><p><strong>%s</strong> %s</p></div>',
+			esc_html__( '2meet Data Optimizer：', '2meet-data-optimizer' ),
+			esc_html(
+				sprintf(
+					/* translators: %s: "Plugin → AddOn" pairs */
+					__( '以下外掛已啟用，但對應的 AddOn 沒有啟用，它們的欄位不會被優化：%s。請啟用對應的 AddOn。', '2meet-data-optimizer' ),
+					implode( '；', $lines )
+				)
+			)
+		);
+	}
+}