cwd property
Cwd is the directory the session is working in NOW, not the one it started in: a linked shell moves around, and a card showing where hanzo link was run answers "which work is this" with something that was true once.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? cwd;