fix: feet-inch dynamic input, STRETCH preselection, ribbon title wrap

- Dynamic-input fields take ' and " and read 2'9" / 3' as lengths (#937)
- STRETCH on a selection made by a crossing window stretches through that
  window and goes straight to the base point (#1068)
- STRETCH's crossing-window steps show no coordinate boxes (#657)
- Collapsed ribbon panel titles wrap at words, never mid-word (#920)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/update/viewport.rs

@@ -4728,6 +4728,9 @@ impl OpenCADStudio {
                 };
 
                 if let Some((fence, window)) = drag_geometry {
+                    if self.tabs[i].active_cmd.is_none() {
+                        self.tabs[i].last_crossing_window = window.filter(|_| box_crossing);
+                    }
                     let result = self.tabs[i].active_cmd.as_mut().and_then(|command| {
                         command.set_shift(self.shift_down);
                         command.on_drag_selection(&fence, window)