[fix/evol] work on better Interface/Task/Conversation/… sync and bot stop action in order to avoid races and locks
[evol] cleanup and preliminary work on the Postman (and Needle-ization)
[evol] Librarian API work §1, using DI too
[evol] server API tree reworked using a DSL (reply handling rework is WIP)
[layout] reorganization
[evol] MapMakerClient->TestClient, test with two conversations, and ideas for the future