0.20.0

Changed — may break callers

• resolvePaths gives the XDG layout on macOS too — ~/.config/<app>, ~/.local/share/<app> and
  ~/.cache/<app>, or the XDG_* variables when set — instead of ~/Library/Preferences,
  ~/Library/Application Support and ~/Library/Caches. One layout on every Unix is one set of
  documentation and one place to look. Linux and Windows paths do not change, and the *_DIR overrides
  still win. It now reads HOME, the XDG_* variables, USERPROFILE, APPDATA and LOCALAPPDATA
  from the env it is given, not from the global process.env, and takes an optional platform.
  On macOS, a CLI that adopts this release finds none of its existing files until it calls
  migrateLegacyMacPaths at start. A keyring service name built from the config path changes with it.

Added

• migrateLegacyMacPaths moves an older release's ~/Library folders to the new ones, once.
  On macOS, with no *_DIR override set, it moves each old folder whose new one is missing or empty,
  all of them or none, and returns what moved. It never merges into a folder that has files, and
  across file systems it copies, checks the copy and keeps the old folder. It throws a
  configuration_error naming the processes when lsof shows a file open in a pending folder — stop a
  running serve or MCP server and run again. lsof sees only files open at that moment, so a caller
  that knows its own lock files should report their holders through holders. Call it at program start, before anything resolves a
  path; with nothing to move it costs one lstat per folder. legacyMacPaths gives the old folders.

Removed

• The env-paths dependency. The paths it gave on Windows are kept as they were.