Okay, thanks for the save!
The reason the tutorial wouldn't progress is because in fact you'd only sent scouts to two out of the three adjacent planets, not all three. If you hover over Hasnuvu in the galaxy map, you'll notice that it says the enemy ships are unknown, and to send a scout to catalogue. If you do that, you're all set to proceed with the rest of the tutorial.
As an aside, I'd also recommend a lot more turrets at each wormhole than what you currently have. Right now there are mostly tractor beams at each one, which hold enemies still -- but holding an enemy still is useless if you don't have something else nearby to shoot at him, heh. I'd put at least 5-15 turrets (basic, missle, laser, all mixed around) at each of those wormholes. And later those numbers will grow even further. That's not required to get to the next step or anything, but it will save you some substantial pain later in the intermediate tutorial.
Hope that helps!