v1.13 — Post-install activation, app launch, scrollable progress page

- Progress page now scrollable (activation + launch cards were clipped)
- Post-install activation card if no product key was provided during wizard
- App launch buttons (Word, Excel, PowerPoint, Outlook) after successful install
- Skipped apps not shown in launch buttons
- Install time hint: "akár 30-40 percet is igénybe vehet"
- Auto-refresh office list after removal
- MSI uninstall: only valid {GUID} product codes accepted

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

MainWindow.xaml

@@ -45,7 +45,7 @@
                                    Foreground="{StaticResource TextSecondaryBrush}" Margin="0,-2,0,0"/>
                     </StackPanel>
                 </StackPanel>
-                <TextBlock Text="v1.11" HorizontalAlignment="Right" VerticalAlignment="Center"
+                <TextBlock Text="v1.13" HorizontalAlignment="Right" VerticalAlignment="Center"
                            FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"/>
             </Grid>
         </Border>