Thank your for the idea! It took me a while, but now I've added repair sensors in version 1.1.3!
The repair sensor comes in 3 tiers. The recipes require construction bots (one for each tier); the idea is that with higher-tiered sensors, more construction bots will repair the vehicle together, so the work is completed faster. There must be repair kits in the trunk that the bots can use, both the vanilla repair-packs and modded repair tools (including those with infinite durability) will work. The amount of damaged repaired per second depends on the prototype of the repair tool used, so it's worth it to supply vehicles with expensive repair kits. I hope you'll like it!