ahhh you did the bridge. ok. im with you now. having a bridge would knock out the other link, even though you would’nt think it would/should.
You’ll have to weigh that out for yourself to see what you want down, it sounds like you would rather go without the bridge from your post. So i would undo it.
Now that i think i understand better, i would make an AP with static address from the wlan, offer dhcp… then make the eth0 a static address as well, offering dhcp. remove the bridge setup. when you plug your laptop in, you’ll be able to control the pi, and the as long as blynk server is using the wlan adaptor, all your clients will be able to report in.