List of all possible reasoning tasks - satisfiability and theorem proving only?
There is no exhaustive list of reasoning tasks, as the phrase "reasoning task" does not have a precise definition.

Don't put too much weight on categorizations.  They're a descriptive tool that might help you get a high-level overview of a field, but they're inherently subjective, incomplete, and imperfect.  There's tons of work on artificial reasoning, and there are many ways one could potentially put a mental framework around it -- there's no one right answer about how to do that.