NexusInDesign 4.2.2

Fixed

• A conversation opened before an update keeps working. The engine is a self-contained single-file .NET program that
  reads its own file again each time it loads an assembly; get.ps1 renamed the running engine aside and put the new
  version at its path, so the open session then read the new version's bytes and its next tool calls failed with
  "Internal error" (reproduced: search_official_dom and indesign_doctor after a replacement). Each version is now
  installed in versions\<version>-<hash>\, a folder never modified once written; current.txt names the version new
  sessions start; NexusInDesign.exe, the path the plugins start, is a small launcher compiled ahead of time (Native
  AOT, which never reads its own file again) that runs the engine current.txt names. An older version's folder is
  removed by a later run once no process runs its engine. Sessions opened before 4.2.2 still run the previous engine
  from the launcher's path and need one reconnection after this update.