feat: add API getallorders and getorder by id

backend/main.go

@@ -54,12 +54,14 @@ func main() {
 			protected.DELETE("/cart/:id", handlers.RemoveFromCart)
 			protected.POST("/orders/", handlers.CreateOrder)
 			protected.GET("/orders", handlers.GetUserOrders)
+			protected.GET("/orders/:id", handlers.GetOrder)
 		}
 
 		admin := protected.Group("/")
 		admin.Use(middleware.AdminOnly())
 		{
 			admin.POST("/register", handlers.Register)
+			admin.GET("/admin/orders", handlers.GetAllOrders)
 		}
 	}