Merge develop into staging
- Split public and private keys (!114 (merged) and !116 (merged))
- Add payment server monitoring (!117 (merged))
- Minor nix-shell improvements (!111 (merged))
- CI improvements for docs (!113 (merged))
- Swap re-configuration (!103 (merged))
- morph node name simplification (!110 (merged))
- Refactored morph grid definition (!109 (merged))