feat(lr): 懒人听书平台接入——App 通道搜索、web 章节列表、账密登录取流

sdk/lr/menu.ts

@@ -0,0 +1,21 @@
+// 懒人听书章节列表（web 通道，匿名免签）
+// 接口: https://m.lrts.me/ajax/getBookMenu?bookId=&pageNum=&pageSize=&sortType=0
+// 实测（2026-10-02）匿名可用；章节条目 {section, name, listenPrice, state}
+// 注意：专辑类内容用 getAlbumAudios（entityType=2），本实现仅收书（entityType=3）
+import { httpFetch } from '../request.ts'
+
+const UA_MI = 'Mozilla/5.0 (Linux; U; Android 4.1.1; zh-cn; MI2 Build/JRO03L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 XiaoMi/MiuiBrowser/1.0'
+const MENU_URL = 'https://m.lrts.me/ajax/getBookMenu'
+
+export const getBookMenu = async(bookId: string, page = 1, limit = 30) => {
+  const { statusCode, body } = await httpFetch(`${MENU_URL}?bookId=${bookId}&pageNum=${page}&pageSize=${Math.max(30, limit)}&sortType=0`, {
+    headers: { 'User-Agent': UA_MI, Referer: 'https://m.lrts.me/' },
+    timeout: 15000,
+  }).promise as any
+  if (statusCode != 200) throw new Error(`获取章节失败（HTTP ${statusCode}）`)
+  const b = body ?? {}
+  if (b.status === 1 || !b.list) throw new Error(b.msg || '获取章节失败')
+  return { total: Number(b.sections ?? 0), list: b.list }
+}
+
+export default { getBookMenu }