Add watermark tiling, rotation types, margin/scale controls

pixstrip-gtk/src/steps/step_watermark.rs

@@ -496,6 +496,27 @@ pub fn build_watermark_page(state: &AppState) -> adw::NavigationPage {
             ];
         });
     }
+    // Wire tiled toggle
+    {
+        let jc = state.job_config.clone();
+        tiled_row.connect_active_notify(move |row| {
+            jc.borrow_mut().watermark_tiled = row.is_active();
+        });
+    }
+    // Wire margin spinner
+    {
+        let jc = state.job_config.clone();
+        margin_row.connect_value_notify(move |row| {
+            jc.borrow_mut().watermark_margin = row.value() as u32;
+        });
+    }
+    // Wire scale spinner
+    {
+        let jc = state.job_config.clone();
+        scale_row.connect_value_notify(move |row| {
+            jc.borrow_mut().watermark_scale = row.value() as f32;
+        });
+    }
     // Wire image chooser button
     {
         let jc = state.job_config.clone();