[Enhancement]: Integrate Fleck for starspot modelling

[kevin218]

Instrument

Light curve fitting (Stages 4-6)

What is your suggestion?

We should add Fleck to the LC fitting stage so that users can model starspots.

Error traceback output

No response

What operating system are you using?

No response

What version of Python are you running?

No response

What Python packages do you have installed?

No response

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