I am having a really bad day for remembering rules. If I run my Nom infused worker to base Corran Horn JM and he kills me with his Jedi Reflexes atk, does he take the damage?

I think I remember that it was yes. Jedi Reflexes is when you move into an adjacent square and regular AoO's are when you move out of an adjacent square.

Is this correct or does Corran walk all over my Nom bombs?

you remember correctly. It is just like mines, in the fact that the bomb will be adjacent before the JR attack happens.

But just to be clear - Corran would take the self destruct damage, but they would not be able to attack (I know they would need a crit to hit - but still). Is this correct?

Corran gets to attack and kills them before they get to attack?

Yes.

It's a bummer - it completely trumps swarm squads