修复了一些问题

tests/widget-system/page-display-save-harness.php

@@ -77,6 +77,13 @@ namespace {
 		return array_key_exists($key, $GLOBALS['aksrt_test_options']) ? $GLOBALS['aksrt_test_options'][$key] : $default;
 	}
 
+	function get_query_var(string $key) {
+		if ($key === 'aksrt_message_view' && $GLOBALS['aksrt_visibility_query'] === 'message') {
+			return 'unread';
+		}
+		return '';
+	}
+
 	function update_option($key, $value): bool {
 		$GLOBALS['aksrt_test_options'][$key] = $value;
 		return true;
@@ -92,7 +99,7 @@ namespace {
 		// Custom rewrites can leave WordPress's posts-page flag set even though
 		// the theme resolves the request to another front-end surface.
 		return in_array($GLOBALS['aksrt_visibility_query'], [
-			'home', 'page', 'user_home', 'user_center', 'user_home_page', 'user_center_page',
+			'home', 'page', 'message', 'user_home', 'user_center', 'user_home_page', 'user_center_page',
 		], true);
 	}
 	function is_front_page(): bool { return $GLOBALS['aksrt_visibility_query'] === 'home'; }
@@ -233,6 +240,8 @@ namespace {
 		'templated_public_user_home'   => aksrt_visibility_case('user_home_page', ['user_home']),
 		'templated_user_center'        => aksrt_visibility_case('user_center_page', ['user_center']),
 		'home_excludes_page'           => aksrt_visibility_case('page', ['home']),
+		'message_uses_other_page'       => aksrt_visibility_case('message', ['page']),
+		'message_excludes_home'         => aksrt_visibility_case('message', ['home']),
 		'home_excludes_public_home'    => aksrt_visibility_case('user_home', ['home']),
 		'home_excludes_user_center'    => aksrt_visibility_case('user_center', ['home']),
 	];