Evaluate and integrate a solar position library

[napo]

Description
Evaluate existing libraries and framework-native solutions for computing solar position, and integrate the most suitable option into the prototype.

Tasks

• Review existing JavaScript libraries for solar position calculation
• Evaluate framework-native capabilities, if available
• Compare options in terms of:
  • [ ] accuracy
  • [ ] ease of integration
  • [ ] browser compatibility
  • [ ] maintenance status
• [ ] Select one solution for the prototype
• [ ] Integrate the selected solution into a minimal demo
• [ ] Validate results with a few reference dates and times

Deliverables
solar-position-evaluation.md
initial solar position integration in the prototype