I get where the idea comes from, but I'm not sure it's something base Botania would really benefit from. If you play just Botania, there are no fluid storages, other than buckets.
The next thing is, Fabric and (Neo)Forge have somewhat differing ways to represent fluid amounts. The basic unit on Fabric is the droplet, and a bucket is 81k droplets. A bottle or bowl is 27000 droplets, an "ingot" is 9000 droplets and a "nugget" is 1000 droplets. Those seem like amounts Fabric fluid containers might be interested in. Botania's item flavor of automated requests uses the rotation of an item in a frame to specify a stack size, but that only allows for 8 possible values.
And the other thing is how Corporea actually extracts items from containers – by pulling them out from the top of the container, as that's where the spark is. I'm not sure that translates too well to various fluid containers, which might only allow pulling fluids via certain sides, potentially even only via certain blocks of a multiblock structure. The usual "Corporea way" of interfacing with containers would likely not be able to access certain fluid containers at all. Similarly, Corporea Funnels insert items into their target container from the top. That also might not work with every fluid container, especially multiblocks or machines with dedicated input sides for various kinds of inputs.
Long story short, this might be better suited as an add-on project.