added api key

app.py

@@ -6,13 +6,11 @@ import numpy as np
 import faiss
 from groq import Groq
 
-# Load API key from environment variable
-api_key = os.getenv("GROQ_API_KEY")
-if not api_key:
-    raise ValueError("❌ GROQ_API_KEY environment variable not set.")
-
 # Initialize Groq client
-groq_client = Groq(api_key=api_key)
+key = os.getenv("GROQ_API_KEY")
+if not key:
+    raise ValueError("No API key found")
+groq_client = Groq(api_key=key)
 model = "llama3-8b-8192"
 
 embedder = SentenceTransformer('all-MiniLM-L6-v2')