Update agent.py

agent.py

@@ -13,9 +13,9 @@ from vision_tool import image_reasoning_tool
 
 #token=os.getenv("HF_API_TOKEN")
 
-#OPENROUTER_API_KEY = os.getenv("OPENROUTER_API_KEY")
-#if not OPENROUTER_API_KEY:
-    #raise EnvironmentError("OPENROUTER_API_KEY environment variable not set")
+OPENROUTER_API_KEY = os.getenv("OPENROUTER_API_KEY")
+    if not OPENROUTER_API_KEY:
+        raise EnvironmentError("OPENROUTER_API_KEY environment variable not set")
 
 common = dict(
     api_base="https://openrouter.ai/api/v1",