refactor(2meet-data-optimizer): stop registering HivePress entity groups in core

- Drop hp_listing_core / hp_request_core / hp_vendor_core from TMDO_Post_Fields and hp_user from TMDO_Member_Fields; the HivePress AddOn registers identical definitions (PR-019/020a/033b)
- Tests: core asserts it registers none of them; HP-specific core tests removed (covered by the AddOn); SyncBridgeEntityGuardTest registers its own hp_price group
- Verify: core unit 633 / integration 449, HP 145/49, WC 10/22 OK
- Deploy: activate the HivePress AddOn on dev20/21/22 first
- PR: PR-020b

includes/integrations/class-tmdo-member-fields.php

@@ -43,6 +43,7 @@ final class TMDO_Member_Fields {
 	 * V2.7.0: Adds four legacy-key groups (core_profile, social, commerce, hp_user)
 	 * to absorb wp_usermeta rows that previously bypassed the entity bridge —
 	 * driving the wp_users:wp_usermeta ratio from 1:5.5 toward 1:2.5.
+	 * (hp_user is now registered by the HivePress AddOn.)
 	 *
 	 * V2.8.4: Adds admin_prefs group — the 7 default keys WP core writes for
 	 * EVERY new user via wp_insert_user (rich_editing, syntax_highlighting,
@@ -64,7 +65,6 @@ final class TMDO_Member_Fields {
 		self::register_core_profile_group();
 		self::register_social_group();
 		self::register_commerce_group();
-		self::register_hp_user_group();
 		self::register_admin_prefs_group();
 	}
 
@@ -414,34 +414,6 @@ final class TMDO_Member_Fields {
 		TMDO_Entity_Registry::register_group( 'user', 'commerce', $fields );
 	}
 
-	/**
-	 * HivePress per-user fields (favorites + avatar attachment).
-	 *
-	 * Hp_favorited_listings is a serialized array of post IDs in legacy storage;
-	 * the migration engine safe_unserialize()s it (allowed_classes=false to block
-	 * PHP-object injection) then the json type encodes back to a JSON array column.
-	 *
-	 * @return void
-	 */
-	private static function register_hp_user_group(): void {
-		TMDO_Entity_Registry::register_group(
-			'user',
-			'hp_user',
-			array(
-				array(
-					'key'   => 'hp_favorited_listings',
-					'type'  => 'json',
-					'label' => 'HivePress favorited listing IDs (array)',
-				),
-				array(
-					'key'   => 'hp_image',
-					'type'  => 'text',
-					'label' => 'HivePress avatar attachment ID',
-				),
-			)
-		);
-	}
-
 	/**
 	 * WP-core admin pref defaults — written by `wp_insert_user()` for EVERY
 	 * new user regardless of role. Without registering these, a fresh user