重构项目结构，将数据层集中在 lib 包中；resource 类型更新，支持多个子套餐类型分别表示；新增长效套餐的购买流程，以及已购查询功能

src/lib/api.ts

@@ -21,7 +21,8 @@ type PageRecord<T = unknown> = {
   list: T[]
 }
 
-type ExtractData<T extends (...args: never) => unknown> = Awaited<ReturnType<T>> extends ApiResponse<infer D> ? D : never
+type ExtraReq<T extends (...args: never) => unknown> = T extends (...args: infer P) => unknown ? P[0] : never
+type ExtraResp<T extends (...args: never) => unknown> = Awaited<ReturnType<T>> extends ApiResponse<infer D> ? D : never
 
 // 预定义错误
 const UnauthorizedError = new Error('未授权访问')
@@ -32,6 +33,7 @@ export {
   CLIENT_SECRET,
   type ApiResponse,
   type PageRecord,
-  type ExtractData,
+  type ExtraReq,
+  type ExtraResp,
   UnauthorizedError,
 }