Improve api

- TribufuApi
- TribufuBot
- TribufuClient
- TribufuServer

src/constants.js

@@ -0,0 +1,21 @@
+a// Copyright (c) Tribufu. All Rights Reserved.
+
+import packageJson from "../package.json";
+
+/**
+ * The version of the Tribufu SDK.
+ * @type {string}
+ */
+export const TRIBUFU_VERSION = packageJson.version;
+
+/**
+ * The default Tribufu API URL.
+ * @type {string}
+ */
+export const TRIBUFU_API_URL = "https://api.tribufu.com";
+
+/**
+ * The default Tribufu CDN URL.
+ * @type {string}
+ */
+export const TRIBUFU_CDN_URL = "https://cdn.tribufu.com";