I have almost the exact same workflow. With just about everything I do, I create little websites to help me with code review, or multitasking on tickets, or reviewing a spec, or whatever I happen to be doing, any workflow gets turned into a throwaway site that works like a work queue or form. I've had trouble teaching this approach to others.

The way I cope with AI Brain Fry is owed to Starcraft. Starcraft is a deeply strategic game where you don't have time to think deeply. The game rewards the right intuition and speed over deep thinking, because attention is the most valuable resource, and it is demanded by dozens of different things at once. When engineering this way, the job is similarly bottlenecked by multitasking and attention. You have to learn to think deeply quickly. That's also why tools that let you organize your attention are so important.

In my youth I was a huge Starcraft player, not pro but close. Starcraft taught me to love intensity and multitasking. Training and continuous practice taught me how to be at near-100% for hours or days on end, and how to think faster and more intensely. I feel like that training more than anything is what makes me able to work this way. I do feel tired, mentally and physically exhausted, but so did I when I played Starcraft, and it's the same fun and rewarding feeling that I would get from playing the game all day.