[FEATURE] ProductMixingOutput doesn't expose the resolved effect list, so custom output factories can't price mixes natively

[Lumahex-star]

What would you like to see?

I'd like it if the ProductMixingOutput exposes the effect list, this would ensure custom output factories can use native mix pricing.

Why would this help?

Right now, you have to build a reference table into your mod for the effect multipliers of each base game effect, and apply that to your mixing calculation.

Extra Context (Optional)

No response