Right now the only purpose of intelligence is to boost dark side force powers. I propose that dark side force powers move to wisdom instead of intelligence and intelligence be used for other skills. This would make wisdom about strength in the force and charisma about connectivity (more FP, better lightsaber control).
Then move all brain-skills over to int - medicine is already int, so move over engineering to be dex/int, blasters to be dex/int and scavenging to con/int. For balance can then move weapon/armour smithing over to int/str and int/con.
Then boost skills with the intelligence:
Medicine: Bonus to healing with heal kits/force packs/bandages
Engineering/Armoursmith/weaponsmith: bonus on repair kits
Fabrication: Eventual bonus on repairing vehicles/buildings
General: Small bonux to xp gain
Reasoning: Right now a lot of skills give you wis/int/cha which are only useful if you use the force. Using my character as an example, because I decided I wanted Fabrication, Engineering, Medicine and Blasters, I’m getting 20 int, 17 wisdom and 2.5 charisma which is entirely useless to me. I have no way to make any of these skills better besides leveling them up - unlike all the combat skills which are boosted by their respective skills.
It seems odd to me that using a blaster makes you better connected to the light side of the force, while using medicine makes you close to the dark side of the force. Allowing int to boost skills allows all these wayward skills to boost int and give general boosts everyone can use.