feat: 添加服务器端缓存功能并优化详情页数据获取

refactor(details/[id].vue): 重构详情页数据获取逻辑，加入缓存机制
feat(plugins/cache.server.js): 新增node-cache插件用于服务器端缓存
chore: 更新package.json依赖，添加node-cache和clone

.output/server/node_modules/node-cache/index.js

@@ -0,0 +1,17 @@
+/*
+ * node-cache 5.1.2 ( 2020-07-01 )
+ * https://github.com/node-cache/node-cache
+ *
+ * Released under the MIT license
+ * https://github.com/node-cache/node-cache/blob/master/LICENSE
+ *
+ * Maintained by  (  )
+*/
+(function() {
+  var exports;
+
+  exports = module.exports = require('./lib/node_cache');
+
+  exports.version = '5.1.2';
+
+}).call(this);