[chore:] added initial BtnCraftCourses-Handler

MainWindow.axaml

@@ -20,7 +20,7 @@
                     <MenuItem Header="Über" x:Name="MnuAbout" Click="MnuAbout_OnClick"  />
                 </MenuItem>
             </Menu>
-            <TabControl Grid.Row="1">
+            <TabControl x:Name="TclMainView" Grid.Row="1">
                 <TabItem>
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">
@@ -194,7 +194,7 @@
                     </Grid>
                 </TabItem>
                 
-                <TabItem>
+                <TabItem x:Name="TbiResults">
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">
                             <LucideIcon Kind="Sparkles" Width="32" Height="32" Size="32" />

MainWindow.axaml.cs

@@ -119,6 +119,14 @@ public partial class MainWindow : Window
     private void BtnCraftCourses_OnClick(object? sender, RoutedEventArgs e)
     {
         // Craft courses here / call course-crafter
+        CourseCrafter.Craft();
+        RefreshResultView();
+        TbiResults.Focus();
+    }
+
+    private void RefreshResultView()
+    {
+        return;
     }
 
     private void LbStudentsImported_OnSelectionChanged(object? sender, SelectionChangedEventArgs e)

crafter.cs

@@ -0,0 +1,9 @@
+namespace spplus;
+
+public class CourseCrafter
+{
+    public static void Craft()
+    {
+        
+    }
+}