feat: complete wechat pay

backend/app/http/routes.gen.go

@@ -46,7 +46,7 @@ func (r *Routes) Register(router fiber.Router) {
 	))
 
 	// 注册路由组: pays
-	router.Get("/pay/callback/:channel", Func1(
+	router.Post("/pay/callback/:channel", Func1(
 		r.pays.Callback,
 		PathParam[string]("channel"),
 	))
@@ -78,7 +78,7 @@ func (r *Routes) Register(router fiber.Router) {
 		Local[*model.Users]("user"),
 	))
 
-	router.Get("/posts/:id/buy", DataFunc2(
+	router.Post("/posts/:id/buy", DataFunc2(
 		r.posts.Buy,
 		PathParam[int64]("id"),
 		Local[*model.Users]("user"),