feat: add ptpress book (#4577)

lib/router.js

@@ -2576,6 +2576,9 @@ router.get('/zhuixinfan/list', require('./routes/zhuixinfan/list'));
 // scoresaber
 router.get('/scoresaber/user/:id', require('./routes/scoresaber/user'));
 
+// 人民邮电出版社
+router.get('/ptpress/book/:type?', require('./routes/ptpress/book'));
+
 // 本地宝焦点资讯
 router.get('/bendibao/news/:city', require('./routes/bendibao/news'));