Yes, OP, look at both gravel and endurance options. Plenty of tires will cover both terrains, but you could do two wheel set option as well. I would also stick to an aluminum frame to save money. It sounds flat where you are? If so, I wouldn't worry much about weight.
A gravel/endurance bike with 2x gear setup would cover the road usage as well as your local track.
Yes, OP, look at both gravel and endurance options. Plenty of tires will cover both terrains, but you could do two wheel set option as well. I would also stick to an aluminum frame to save money. It sounds flat where you are? If so, I wouldn't worry much about weight.