hey Gregory,
glad you found it somewhat useful.
you seem to be much farther ahead than you may think. adding rock dust from the jump was a smart move.
but, the minerals from rock dust are not immediately bio-available for plants to use. they need the soil microorganisms to convert them and offer them as food for the
roots. hence, the reason why your supplier included the compost to make brew. so depending on when you amended, your eggplants may not get the results. but any fall veggies will, and next spring's veggies will even more. in other words, with rock dust, your soil will improve over time, provided it has healthy biological activity.
so yes, make your tea and concentrate your application around the
root zone of any current plantings, foliar spray the weak/bug bite ones (best to foliar spray around dawn/dusk as that is when the plant "pores" are most open to receive liquid nutrition).
i'm with Krystelle, i don't intentionally squash any bugs except for ticks (for obvious reasons). then again, i'm willing to sacrifice a plant or several to understand the overall balance (or lack thereof). if you haven't already, you could plant some companions that attract predatory wasps (yarrow is my personal favorite).
as for bokashi, yes, i use an EM type concentrate as a base, but you don't have to, considering you already make yogurt and have excess whey. i would consider adding some whey to your compost tea mixture before you aerate. and when you're ready, do a search for "newspaper bokashi", you may already have all the materials you need without having to purchase anything more.
one last idea to try: if you have a mugwort patch accessible, stick a shovel into the soil and see if there are any white stringy globs in there. if so, you've hit paydirt, cuz that's mycorrhiza. i've been digging up random patches of mugwort all spring and without fail, every one of them is full of myco networks underneath. scoop up some of that soil and white globs and add to your tea mixture. in this application, you wouldn't have to sift out the roots, but if you were to add that soil as a straight amendment, i would most definitely sift them out, otherwise you're going to spread the mugwort, and that plant is vicious once it gets going.
purely anecdotal so YMMV, but it's been working for me.
wish you good fortune with your experiments.
p.s. that uni soil test may not give you a micronutrient reading, which you are going to want to know, especially since you're doing the rock dust thing. if they don't, try Logan Labs or someone else who does an Albrecht style testing method. it's a little more expensive, but immensely more valuable.