fix(2meet-data-optimizer): drift checks only where native meta is authoritative

- In aeav_only flat is the source of truth and native meta is stale by design, so drift there means nothing: drift-check --fix refuses (it would overwrite current flat values with stale native ones), the daily sample skips such entities, and the router keeps routing a drifting group instead of falling back to stale native meta.
- Found before PR-074 on hardening/2.2 (PR-071–073 not released; dev21 still runs aeav_only).
- Verify: DriftCheckTest / PostQueryRouterDriftTest aeav_only cases (RED before); dev36 fix() in a simulated aeav_only refused.
- PR: PR-073b

tests/integration/PostQueryRouterDriftTest.php

@@ -100,6 +100,23 @@ class PostQueryRouterDriftTest extends TestCase {
 		$this->assertNotEmpty( $query->get( 'wpdo_post_clauses' ) );
 	}
 
+	public function test_aeav_only_ignores_drift_because_native_is_stale_by_design(): void {
+		self::set_modes(
+			array(
+				'post'    => 'aeav_only',
+				'user'    => 'disabled',
+				'term'    => 'disabled',
+				'comment' => 'disabled',
+			)
+		);
+		$this->drift( 'wc_product', 3 );
+		$query = $this->price_query();
+
+		( new WPDO_Post_Query_Router() )->pre_get_posts( $query );
+
+		$this->assertNotEmpty( $query->get( 'wpdo_post_clauses' ) );
+	}
+
 	public function test_sorting_by_a_drifting_key_stays_native(): void {
 		$this->drift( 'wc_product', 1 );
 		$query = new WP_Query();