Update agent.py

agent.py

@@ -190,6 +190,7 @@ def build_graph(provider: str = "groq"):
         # Google Gemini
         llm = ChatGoogleGenerativeAI(model="gemini-2.0-flash", temperature=0)
     elif provider == "groq":
+        os.environ.get("GROQ_API_KEY")
         # Groq https://console.groq.com/docs/models
         llm = ChatGroq(model="qwen-qwq-32b", temperature=0) # optional : qwen-qwq-32b gemma2-9b-it
     elif provider == "huggingface":