ci/cd and minor code maintenance

Overview

This issue collects minor changes related to ci/cd, or other code-style/compile/warning fixes that we do while 'at it' in a file.

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• Add doc for dtss transfer and related types

• archlinux update packages

  • custom aur/cmake : rocksdb 9.6.1
  • aur python-bokeh(w.deps),
  • aur armadillo
  • aur dlib

• use std::int64_t as int type explicit, also in web/api/ parser/generators. This ensures we can communicate same value range in web-api as the binary protocol api. It also resolves warnings from compiler related to the same problem.