Update the config class for the dots bot api.

src/config/dots_bot_api_config.py

@@ -1,5 +1,10 @@
+from environs import Env
+
+env = Env()
+env.read_env()
+
 class DotsBotApiConfig():
-    _base_url = "https://domain"
+    _base_url = env('BOT_API_BASE_URL')
 
     def __str__(self) -> str:
         return f"{self._base_url=}"