Revert REST controller changes - use simple has_permission() call as intended

Author: Mohamed Khaled

includes/rest-api/endpoints/class-wp-rest-abilities-run-controller.php

@@ -162,15 +162,8 @@ public function run_ability_permissions_check( $request ) {
 			);
 		}
 
-		$input             = $this->get_input_from_request( $request );
-		$permission_status = $ability->get_permission_status( $input );
-		if ( true !== $permission_status ) {
-			// Handle input validation errors as 400 Bad Request
-			if ( is_wp_error( $permission_status ) && 'ability_invalid_input' === $permission_status->get_error_code() ) {
-				return $permission_status; // Let WordPress handle as 400 Bad Request
-			}
-
-			// Handle actual permission errors as 403 Forbidden
+		$input = $this->get_input_from_request( $request );
+		if ( ! $ability->has_permission( $input ) ) {
 			return new \WP_Error(
 				'rest_ability_cannot_execute',
 				__( 'Sorry, you are not allowed to execute this ability.' ),