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

tests/unit/PostFields/PostFieldsRegistrationTest.php

@@ -6,7 +6,7 @@ use PHPUnit\Framework\TestCase;
 /**
  * Unit tests for WPDO_Post_Fields entity group registration (v2.9.1).
  *
- * Verifies that register_entity_fields() correctly registers all seven
+ * Verifies that register_entity_fields() correctly registers all four
  * post groups with the expected field counts, types, and post_type targets.
  *
  * Mirrors MemberFieldsRegistrationTest's structure.
@@ -33,16 +33,13 @@ class PostFieldsRegistrationTest extends TestCase {
 		$this->assertTrue( true );
 	}
 
-	public function test_all_seven_groups_are_registered(): void {
+	public function test_all_four_groups_are_registered(): void {
 		WPDO_Post_Fields::register_entity_fields();
 
 		$expected = array(
 			'wp_core',
 			'attachment',
 			'wc_product',
-			'hp_listing_core',
-			'hp_request_core',
-			'hp_vendor_core',
 			'nav_menu_item',
 		);
 
@@ -129,24 +126,15 @@ class PostFieldsRegistrationTest extends TestCase {
 		$this->assertContains( 'outofstock', $field['options'] );
 	}
 
-	// ── hp_listing_core group ────────────────────────────────────────────────
+	// ── HivePress groups moved to the HivePress AddOn ───────────────────────
 
-	public function test_hp_listing_core_critical_keys_present(): void {
+	public function test_core_registers_no_hivepress_groups(): void {
 		WPDO_Post_Fields::register_entity_fields();
-		$keys = $this->get_field_keys( 'hp_listing_core' );
-		foreach ( array( 'hp_price', 'hp_status', 'hp_featured', 'hp_verified', 'hp_vendor' ) as $key ) {
-			$this->assertContains( $key, $keys, "hp_listing_core missing critical key: {$key}" );
+		foreach ( array( 'hp_listing_core', 'hp_request_core', 'hp_vendor_core' ) as $group ) {
+			$this->assertSame( array(), WPDO_Entity_Registry::get_group_fields( 'post', $group ), "{$group} is owned by the HivePress AddOn" );
 		}
 	}
 
-	public function test_hp_listing_price_is_searchable_decimal(): void {
-		WPDO_Post_Fields::register_entity_fields();
-		$field = $this->find_field( 'hp_listing_core', 'hp_price' );
-		$this->assertNotNull( $field );
-		$this->assertSame( 'decimal', $field['type'] );
-		$this->assertTrue( (bool) ( $field['searchable'] ?? false ) );
-	}
-
 	// ── nav_menu_item group ──────────────────────────────────────────────────
 
 	public function test_nav_menu_item_has_8_keys(): void {