feat: add some feature

src/main/kotlin/cn/rtast/fancybot/Const.kt

@@ -7,6 +7,7 @@
 
 package cn.rtast.fancybot
 
+import cn.rtast.fancybot.entity.Config
 import com.google.gson.Gson
 import com.google.gson.GsonBuilder
 
@@ -15,3 +16,9 @@ val gson: Gson = GsonBuilder()
     .disableHtmlEscaping()
     .serializeNulls()
     .create()
+
+const val ROOT_PATH = "./data"
+
+val DEFAULT_CONFIG = Config(
+    cnmApi = "https://ncm.rtast.cn"
+)