Perhaps I should say “very warm, humid conditions”. 90 deg. F days with high humidity are very common here in summer, but 100 deg. is unusual.
You can grow a lot of veggies, but your timing has to be the thing to avoid the heat in the middle of the summer - aside from tomatoes and peppers, maybe? I’ve never gardened in Zone 7a, so my first bit of advice would be to get a few books on gardening in that zone.
Here’s some good planting data for timing of planting:
https://veggieharvest.com/calendars/zone-7-vegetable-planting-calendar-schedule/
Veggies that can grow in partial shade. There are a lot of them:
https://www.gardeningchannel.com/sun-and-shade-loving-vegetables-list/
I have a friend in AZ who calls me every February to tell me about his tomatoes this season...when I haven’t even STARTED mine, yet!