Test the prompt validation system to ensure it properly handles dietary restrictions and user preferences.
Tests dietary restriction validation
Prompt: "I want a recipe for grilled chicken"
Tests meat restriction validation
Prompt: "Can you make me a beef burger recipe?"
Tests gluten restriction validation
Prompt: "I need a pasta carbonara recipe"
Tests valid dietary request
Prompt: "I want a vegan tofu stir fry recipe"
Tests skill level validation
Prompt: "I want to make sous vide duck breast"