updated dotenv implementation

app.py

@@ -1,13 +1,17 @@
 import chainlit as cl
 import logging
+import os
 from openai import AsyncOpenAI
 from pinecone.grpc import PineconeGRPC as Pinecone
 from dotenv import load_dotenv
 
 load_dotenv(override=True)
 
-client = AsyncOpenAI()
-pc = Pinecone()
+PINECONE_API_KEY = os.getenv("PINECONE_API_KEY")
+OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
+
+client = AsyncOpenAI(api_key=OPENAI_API_KEY)
+pc = Pinecone(api_key=PINECONE_API_KEY)
 index_name = "branded-food-data"
 index = pc.Index(index_name)