Updated narrator.py and requirements.txt to support .env file for environment variables

narrator.py

@@ -1,4 +1,5 @@
 import os
+from dotenv import load_dotenv
 from openai import OpenAI
 import base64
 import json
@@ -7,6 +8,8 @@ import simpleaudio as sa
 import errno
 from elevenlabs import generate, play, set_api_key, voices
 
+load_dotenv()
+
 client = OpenAI()
 
 set_api_key(os.environ.get("ELEVENLABS_API_KEY"))

requirements.txt

@@ -28,6 +28,7 @@ pure-eval==0.2.2
 pydantic==2.4.2
 pydantic_core==2.10.1
 Pygments==2.16.1
+python-dotenv==1.0.0
 requests==2.31.0
 simpleaudio==1.0.4
 six==1.16.0