fix(2meet-data-optimizer): give new posts' flat rows their status/date copies; sync drops cached counts

- add_flat_rows (wp_insert_post, after transition_post_status) inserts the
  copies with the empty row: a NULL copy turned the copy route off for the
  whole group until the next sync
- wp tmdo post-status-sync bumps the routed count version (not on dry runs)
- Test bootstrap: minimal WP_Post stub
- Found in the 2.4 correctness review (residual risks)
- Verify: 2 new integration tests; integration 606, unit 704, phpcs 0, stan OK
- PR: PR-133

tests/integration/PostQueryRouterCopyTest.php

@@ -133,6 +133,22 @@ class PostQueryRouterCopyTest extends TestCase {
 		$this->assertSame( 'wp_posts.post_title ASC', $router->posts_orderby( 'wp_posts.post_title ASC', $query ) );
 	}
 
+	/**
+	 * wp_insert_post runs after transition_post_status: a new post's empty flat
+	 * row must carry the copies itself, or one NULL turns the copy route off for
+	 * the whole group (2.4 correctness review).
+	 */
+	public function test_a_new_post_gets_its_flat_row_with_the_copies(): void {
+		global $wpdb;
+		$post                    = new WP_Post( (object) array( 'ID' => 7, 'post_type' => 'rc_item', 'post_status' => 'draft', 'post_date' => '2026-02-02 00:00:00' ) );
+		$GLOBALS['_wp_posts'][7] = $post;
+
+		( new TMDO_Post_Query_Router() )->add_flat_rows( 7, $post, false );
+
+		$this->assertSame( array( 'post_status' => 'draft', 'post_date' => '2026-02-02 00:00:00' ), $wpdb->get_row( 'SELECT post_status, post_date FROM `' . self::TABLE . '` WHERE post_id = 7', ARRAY_A ) );
+		unset( $GLOBALS['_wp_posts'][7] );
+	}
+
 	public function test_copy_route_keeps_group_by_with_another_join(): void {
 		global $wpdb;
 		$sql = $this->request( " LEFT JOIN wp_term_relationships ON ({$wpdb->posts}.ID = wp_term_relationships.object_id)" );