docs: annotate remaining routes layouts and view boundaries

app/pages/messages/index.vue

@@ -291,6 +291,7 @@ var ge = {
             let e = Number(T.query.id);
             e && Q(e);
           }),
+          // 批量操作基于当前选择集，详情正文经公共清理后展示；详情 ID 与加载代次防止快速切换串信。
           (t, i) => {
             let s = button,
               p = NotificationPreferences,