What kind of apple fermented drink did I just make?
What you made is a watered  down version of a fermented or hard cider - the natural yeasts in the apple produce CO2 and alcohol, the sugar adds a bit of extra food for the yeasts, as does the honey which also contributes to the flavor, like the cinnamon stick and fennel.
In short, you used the spontaneous fermentation like it’s traditional for wine and cider, just with a diluted fruit mash.
For tweaking:
The sugar (or honey) is necessary as you added water to the apple juice. The spices are optional.
I currently have a batch of something quite similar on a shelf, where I first fermented apple peels and cores in water  (using up leftovers) and now am fermenting it a second time to make vinegar.