Add environment variable debugging

app.py

@@ -24,6 +24,13 @@ def main():
     print("🚀 Starting Second Brain AI Assistant...")
     print(f"📁 Using retriever config: {retriever_config_path}")
     
+    # Debug: Check environment variables
+    print("🔍 Environment variables check:")
+    print(f"  COMET_API_KEY: {'SET' if os.getenv('COMET_API_KEY') else 'NOT SET'}")
+    print(f"  COMET_PROJECT: {os.getenv('COMET_PROJECT', 'NOT SET')}")
+    print(f"  OPENAI_API_KEY: {'SET' if os.getenv('OPENAI_API_KEY') else 'NOT SET'}")
+    print(f"  MONGODB_URI: {'SET' if os.getenv('MONGODB_URI') else 'NOT SET'}")
+    
     try:
         # Initialize agent
         agent = get_agent(retriever_config_path=Path(retriever_config_path))