add image tool to agent and token handling through secret

app.py

@@ -1,4 +1,5 @@
 from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
+from huggingface_hub import login
 import datetime
 import requests
 import pytz
@@ -38,13 +39,14 @@ final_answer = FinalAnswerTool()
 
 # If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
 # model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud' 
-hf_token = os.getenv("HF_TOKEN")
+hf_token = os.getenv("HF_TOKEN")  # Retrieve from environment variables
+login(token=hf_token)  # Authenticate before using HfApiModel
+
 model = HfApiModel(
     max_tokens=2096,
     temperature=0.5,
     model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
     custom_role_conversions=None,
-    api_key=hf_token,
 )