I would go for a friendly resolution, just say hey some of that was done on my free time it represents that much hours of work, I’m fine transferring it in exch

I would go for a friendly resolution, just say hey some of that was done on my free time it represents that much hours of work, I’m fine transferring it in exchange for $ to cover the extra work / equity if it’s a startup. Also negotiate some power if you can like having your own team to help you with it etc... everyone wins : you and your Corp