Did I ask her out too early?

Probs just a bit harsh. You probably need a better reason to meet her than to talk about a consulting job

Yep. That was out of the blue. You should have gone the soft close route before hardclosing her. Something like

"I knew I chatted with an airpods savior. Any other super powers?"

And then lead toward

"You can show me these super powers over a drink sometime soon"

And only then the hardclose

"If that's cool"

I like the banter back and forth and this girl seems very invested. It wasn't about the timing just possibly the manner; I would have said something like "Haha love it, I do different types, why don't I tell you about it over a drink?" It's essentially the same but worded differently to make it a little more playful and less interview style. Since her investment was so high, I don't think it was a mistake to go for the soft close.

I would just send her a takeaway in a couple of days, something like "If you're into that sort of thing.." or "It's not a trick question I swear;)"

Hope this helps bro!