Generate a personalized meal plan that is nutritionally balanced, varied, and adheres to specified calorie target and dietary needs. For each day, list all meals and snacks with calorie counts. Include a complete shopping list organized by category. Maximum 1000 words. Do not repeat meals across days. Ensure daily total equals exactly {{calories_per_day}} calories. All meals must fit {{special_diet_needs}}. Number of days: {{days}}. Tone: {{tone}}.