Update app.py

app.py

@@ -25,7 +25,7 @@ from sqlalchemy import Column, Integer, String, DateTime, Text, Float
 # --- Environment Variables and API Keys ---
 SPOONACULAR_API_KEY = os.getenv("SPOONACULAR_API_KEY", "default_fallback_value")
 PAYSTACK_SECRET_KEY = os.getenv("PAYSTACK_SECRET_KEY", "default_fallback_value")
-DATABASE_URL = os.getenv("DATABASE_URL", "default_fallback_value")  
+DATABASE_URL = os.getenv("DATABASE_URL", "default_fallback_value")  # Example using SQLite
 NVIDIA_API_KEY = os.getenv("NVIDIA_API_KEY", "default_fallback_value")
 openai.api_key = os.getenv("OPENAI_API_KEY", "default_fallback_value")