report: grow the Prompter port and move display_path out of the ui module

Prompter gains interactive(), select() and text() (with the Validator
type), and confirm() now propagates cancellation as Err so flows abort
instead of silently taking a default when the user hits Ctrl+C. The
terminal prompter implements the full port; the port also re-exports
the path display helper, which is pure presentation formatting used by
events and messages rather than terminal code.

src/new/debian.rs

@@ -436,7 +436,7 @@ pub fn create_orig_tarball_excluding(
 
     log::info!(
         "Created orig tarball {}",
-        crate::ui::display_path(&tarball_path)
+        crate::report::display_path(&tarball_path)
     );
     Ok(tarball_path)
 }