3.2.0

AI generated. Reviewed by Johnny.

This release adds jd move, which moves a file or a folder into an ID
and journals it, and jd undo move, which moves it back. Both are beta.

Features

• jd move <path> <id> moves the file or folder at <path> into the
  folder for an ID or a W number, and prints the new path. An ID that
  is in the JDex but has no folder gets its folder made first. It
  refuses a name the target already holds, an iCloud stub that is not
  downloaded, and a target inside the thing you are moving. It never
  renames.
• Every move is one line in ~/.jd/journal.jsonl: when, which system,
  the ID, from, to, and whether a person or a program asked. The file
  is append only. The journal has to be writable before anything
  moves. jd writes nothing into the JDex.
• jd undo move moves the newest move in the system back, or, with a
  path, the move that put that path where it is. It refuses if the
  moved thing is no longer where jd put it, or if something else is
  now where it came from. An undo is one more journal line.
• Both take --dry-run and --json, in the shape jd new uses.

Changes

• The README opens with an attribution line that points at the AI
  attribution section.

Closes #8.