I'm thinking the canopy should slowly heal itself over time anyway. We have self-repairing glass today that fixes cracks just by being exposed to sunlight. Well, as it happens, us space pilots do get exposed to an awful lot of sunlight. Just sayin'
Thinking about it, I'd like to see more use of all that wasted solar energy in general. Solar power generation is limited by the amount of sunlight you can pick up and the efficiency of the receptor materials. Our ships, when fuel scooping, are flying just above the surface of an enormous fusion reactor many orders of magnitude more powerful than the one driving the ship. The hull is being bombarded with high energy plasma and all that raw heat energy is being wasted, when it could be put to use for more than filtering hydrogen into the fuel tank. For the amount of danger involved in just refuelling the ship, maybe let it also recharge the shields at an accelerated rate, let it provide the necessary energy to heal minor canopy scratches, or make the hull plating malleable enough for structural integrity forcefields to mould it back into shape. All of these effects would take a long time to have noticeable effect, so it would only benefit people making a long series of jumps and scoops, ie explorers or people travelling across the bubble regularly.
More little effects and nuances for supercruise in general would be appreciated. While flying through the corona of main sequence stars could have beneficial effects, non-main series stars or dangerous celestial objects like neutron stars or black holes could have similar negative effects if you stay too close for too long. I don't believe in adding something helpful without also adding some new challenge to overcome with it. So the extreme structural stresses from intense gravity wells should degrade your hull integrity over time at a greater rate, and radiation jets around the poles of fast rotating objects should be a hazard to be avoided. Some little things to add depth without asking too much dev time.