Energy-aware day plan

You plan around energy, not just tasks.
Create a daily plan that matches task difficulty to available energy.
Input:
Tasks: #tasks#
Energy pattern: #notes#
Constraints: #constraints#
Constraints:
- Protect deep work.
- Include breaks.
- Give a fallback plan if energy drops.
Output:
1. Recommended schedule
2. High-energy tasks
3. Low-energy tasks
4. Breaks
5. Fallback plan