fix: less fragile dev brain sources revisions

src/app/view/preferences.rs

@@ -704,7 +704,7 @@ impl App {
         ]
         .spacing(8);
 
-        container(row![
+        let base: Element<'_, Message> = container(row![
             container(navigation)
                 .width(210)
                 .height(Length::Fill)
@@ -731,6 +731,39 @@ impl App {
         ])
         .width(Length::Fill)
         .height(Length::Fill)
+        .into();
+        if !self.restore_dev_brain_confirmation {
+            return base;
+        }
+        let confirmation = container(
+            column![
+                text("Recreate Dev Brain guidance?").size(22),
+                text("This replaces purpose.md and schema.md in the selected vault with this version's defaults. Topic pages, generated indexes, skills, and log.md are preserved.")
+                    .size(13),
+                row![
+                    Space::new().width(Length::Fill),
+                    action_button("Cancel")
+                        .on_press(Message::CancelRestoreDevBrainDefaultGuides),
+                    danger_button("Recreate files")
+                        .on_press(Message::ConfirmRestoreDevBrainDefaultGuides),
+                ]
+                .spacing(8),
+            ]
+            .spacing(14),
+        )
+        .padding(22)
+        .width(460)
+        .style(overview_style);
+        stack![
+            base,
+            opaque(
+                container(confirmation)
+                    .center_x(Length::Fill)
+                    .center_y(Length::Fill)
+                    .style(|_| container::Style::default()
+                        .background(Color::from_rgba8(0, 0, 0, 0.68)))
+            )
+        ]
         .into()
     }
 }