Add the edit contact dialog

Ctrl+Y from the entry window, or Enter on a row in the log, opens the whole
contact in one dialog. It reaches the fields the log has no column for: QSX
frequency, name, QTH, comment, grid, power, radio number, run position, and the
country and WPX prefixes. Previous and Next walk the log without closing and
offer to save first.

The dialog checks values through the same QsoEditor the log columns use, so a
zone the contest will not take is refused the same way in both places.
QsoEdit now names the field that was refused, so the dialog can put the cursor
back in the right box, and QsoEditor.ApplyAll changes several fields at once.

Points and the multiplier flags are shown but not editable. They are worked out
from the rules every time the log changes, so a typed value would be lost on
the next edit. N1MM lets you type them; we do not, rather than offering a box
that does nothing.

A contact's own country prefix now wins over the country file when scoring.
Without this, correcting the country in the dialog would change what the log
shows and what Cabrillo says, but not the score.

LoggingSession.Update now broadcasts the change like Edit does, so a contact
saved from the dialog reaches the other stations.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/Nonemm.App/Windows/EntryWindow.Menu.cs

@@ -176,6 +176,16 @@ public sealed partial class EntryWindow
 
     private void OnExit(object? sender, RoutedEventArgs e) => Close();
 
+    private async void OnEditLastContact(object? sender, RoutedEventArgs e)
+    {
+        if (Logging is null || Logging.Log.Qsos.Count == 0)
+        {
+            Status("there is nothing in the log yet");
+            return;
+        }
+        await new EditContactDialog(Logging, Logging.Log.Qsos[^1].Id).ShowDialog(this);
+    }
+
     private void OnShowLog(object? sender, RoutedEventArgs e) => Show(() => new LogWindow(session));
 
     private void OnShowCheck(object? sender, RoutedEventArgs e) => Show(() => new CheckWindow(session, () => Logging?.Entry.Call ?? ""));

src/Nonemm.App/Windows/EntryWindow.axaml

@@ -39,6 +39,9 @@
         <Separator />
         <MenuItem Header="E_xit" Click="OnExit" />
       </MenuItem>
+      <MenuItem Header="_Edit">
+        <MenuItem Header="Edit _Last Contact…" Click="OnEditLastContact" InputGesture="Ctrl+Y" />
+      </MenuItem>
       <MenuItem Header="_View">
         <MenuItem Header="_Log" Click="OnShowLog" />
         <MenuItem Header="_Check" Click="OnShowCheck" />

src/Nonemm.App/Windows/EntryWindow.axaml.cs

@@ -179,6 +179,10 @@ public sealed partial class EntryWindow : Window
                 e.Handled = true;
                 MoveFocus(forward: !e.KeyModifiers.HasFlag(KeyModifiers.Shift));
                 break;
+            case Key.Y when e.KeyModifiers.HasFlag(KeyModifiers.Control):
+                e.Handled = true;
+                OnEditLastContact(this, new RoutedEventArgs());
+                break;
             case Key.OemQuestion when e.KeyModifiers.HasFlag(KeyModifiers.Control):
                 e.Handled = true;
                 ToggleRun();

src/Nonemm.App/Windows/LogWindow.axaml

@@ -9,6 +9,7 @@
               FontSize="12" FontFamily="monospace">
       <DataGrid.ContextMenu>
         <ContextMenu>
+          <MenuItem Header="Edit contact…" Click="OnEditContact" InputGesture="Enter" />
           <MenuItem Header="Delete contact" Click="OnDelete" InputGesture="Delete" />
         </ContextMenu>
       </DataGrid.ContextMenu>

src/Nonemm.App/Windows/LogWindow.axaml.cs

@@ -112,11 +112,30 @@ public sealed partial class LogWindow : RefreshableWindow
 
     private void OnKeyDown(object? sender, KeyEventArgs e)
     {
-        if (e.Key == Key.Delete && e.Source is not TextBox)
+        if (e.Source is TextBox)
         {
-            OnDelete(sender, new RoutedEventArgs());
-            e.Handled = true;
+            return;
         }
+        switch (e.Key)
+        {
+            case Key.Delete:
+                e.Handled = true;
+                OnDelete(sender, new RoutedEventArgs());
+                break;
+            case Key.Enter:
+                e.Handled = true;
+                OnEditContact(sender, new RoutedEventArgs());
+                break;
+        }
+    }
+
+    private async void OnEditContact(object? sender, RoutedEventArgs e)
+    {
+        if (session.Logging is null || Rows.SelectedItem is not LogRow row)
+        {
+            return;
+        }
+        await new EditContactDialog(session.Logging, row.Qso.Id).ShowDialog(this);
     }
 
     private async void OnDelete(object? sender, RoutedEventArgs e)