Blueberry Cheese. BioBizz

This is nothing to worry about, not a disease or deficiency of any sort, only slight "blemishes". Just remember.....no plant will ever have 100% perfect leaves, 100% of the time.

You can LST right up until the stems start to harden at the budding stage. It's low stress that's the point. But what I have found with autos is heavy defoliation is a bigger stress to the plant. So don't go too heavy on leaf stripping just selectively defoliate when needed. First 3 or 4 weeks with autos leave them to grow as the aim at this stage is to build a strong root system. Once that is established they can usually handle a good leaf strip (if needed) If your plants is growing tall LST is fine. It's a good method to shape the plant how you want it.

I remove dead leaves you will find with larger canpoy alot of leaves dont get light so they do die off if you dont remove them they will become a place where little bugs can hide and they will also give off ethonol I think it is. people do use them as mulh but these people are using living soil methods which is the only really use for dead fan leaves. Best of luck :)

If it was over watering, the entire plant would be affected. This is severe nitrogen toxicity from feeding too much or too often...........or both. Plain water until she recovers is the only real option. When you finally resume feeding, half of what you were giving previously should be a good place to start. "Flushing" with huge amounts of water can make things worse, by releasing even more nitrogen from the substrate, increasing the problem, not helping the issue.

Its bad PH, 6.3 for substrate isnt good. Raise PH to 6.5-6.8 - when adjusting pH, you can aim for a different value with each watering. For example, you can adjust your pH to 6.2 for one dressing and 6.6 for another. If you stay in the 6.0-7.0 range, everything should go according to plan. Check run off PH, Biobizz lowers PH

They seems both burnt bro. Sorry I forget tell you, its better use half doses than Biobizz recommends. For now still use only water for recovery, I know it tempts you to use fertilizers. Less is sometimes more, use only Bioheaven now, one day only water- next watering with Bioheaven and again water .......... to recovery. You can adding them 2ml/l of heaven its boosting stimulant and protects plants.

She was damaged too much, now she giving energy to trying buld new leaves this is why she have smaller buds, smell will appear with their rippening.

You could just grow the plant another week. Harvest a week late and a week early. Other than that, if you chop, I do not know of any two week storage options that are any easier than setting a drying space.