Can I bake a parve cake in a clean fleishig oven lechatchila and pour something milchig on top of it when it cools off?
Answer:
Yes, this is fine.
A parve cake baked in a fleishig oven remains parev.
Although concerning a fleishig pot some are lechatchila stringent to not cook something in a meaty pot (even not a ben-yomo) if it will be eaten with dairy, this does not apply to an oven, where there is no contact between the walls of the oven and the food itself.
Best wishes.
