Remove env_path dependency

config_manager.py

@@ -42,11 +42,8 @@ class Config:
     admin_user_id: int
 
     @classmethod
-    def load(cls, env_path: str = ".env") -> Self:
-        if not os.path.exists(env_path):
-            raise FileNotFoundError(f".env file not found: {env_path}")
-
-        load_dotenv(env_path)
+    def load(cls) -> Self:
+        load_dotenv()
 
         bot_token = os.getenv("BOT_API_TOKEN", "")
         api_token = os.getenv("API_AUTH_TOKEN", "")