Your "sprocket light leaks" don't cross into the negative rebate, so they're not light leaks.

The marks are blue/cyan on the negative (hence orange in the scan), and darker in the scan than the surrounding image area, suggesting they're due to local underdevelopment. This is what I'd expect from bromide drag, which is caused by insufficient agitation.

Standard C-41 process normally calls for either continuous agitation or five seconds agitation every thirty seconds -- if you're agitating less than this latter you could have problems with bromide drag, even with fresh color developer.

Another potential contributor is overexposure -- the more exposed your film is, the more bromide it releases during development, meaning more exposed film (for instance, film that "saw" the bright sky) is more prone to bromide drag.

Combination here is overexposure and overdevelopment -- you're 10C too high on temperature as well as exposing a stop over (the latter alone usually doesn't cause trouble, though it will produce denser negatives). The muddiness is most likely from your scanning software compensating for this combination.

So, to correct this (aside from observing recommended chemical life in terms of weeks since mixing and rolls processed), be sure to agitate sufficiently, keep your temperature within tolerance (Cs41 wants to start at 102F = 38C, which is calculated to give an average of the C-41 correct 100F after the developer cools during processing), and watch your exposure. Color negative film has a lot of latitude, but this is one of the ways overexposure can have a negative effect.