fix(editor): inline paste buttons for credentials on mobile

src/OpenIPC.Viewer.App/Styles/Buttons.axaml

@@ -6,4 +6,19 @@
     secondary, ghost, danger variants converge on the Console spec.
   -->
 
+  <!-- Flat icon button hosted in TextBox.InnerRightContent (paste-from-
+       clipboard affordance). Focusable=False keeps the soft keyboard up:
+       a focus steal on tap would dismiss the IME before the paste lands. -->
+  <Style Selector="Button.paste-inline">
+    <Setter Property="Background" Value="Transparent" />
+    <Setter Property="BorderThickness" Value="0" />
+    <Setter Property="Padding" Value="6,4" />
+    <Setter Property="Margin" Value="0,0,2,0" />
+    <Setter Property="VerticalAlignment" Value="Center" />
+    <Setter Property="Focusable" Value="False" />
+  </Style>
+  <Style Selector="Button.paste-inline:pointerover /template/ ContentPresenter">
+    <Setter Property="Background" Value="Transparent" />
+  </Style>
+
 </Styles>

src/OpenIPC.Viewer.App/Themes/Theme.axaml

@@ -62,6 +62,8 @@
   <StreamGeometry x:Key="IconCheck">M20,6 L9,17 L4,12</StreamGeometry>
   <StreamGeometry x:Key="IconChevronRight">M9,18 L15,12 L9,6</StreamGeometry>
   <StreamGeometry x:Key="IconChevronLeft">M15,18 L9,12 L15,6</StreamGeometry>
+  <!-- IconPaste — clipboard-paste. -->
+  <StreamGeometry x:Key="IconPaste">M11,14 h10 M16,4 h2 a2,2 0 0 1 2,2 v1.344 M17,18 l4,-4 l-4,-4 M8,4 H6 a2,2 0 0 0 -2,2 v14 a2,2 0 0 0 2,2 h12 a2,2 0 0 0 1.793,-1.113 M9,2 h6 a1,1 0 0 1 1,1 v2 a1,1 0 0 1 -1,1 h-6 a1,1 0 0 1 -1,-1 V3 a1,1 0 0 1 1,-1 Z</StreamGeometry>
 
   <!-- Section icons for Settings (Lucide paths). -->
   <!-- IconAppearance — palette. -->

src/OpenIPC.Viewer.App/Views/Dialogs/CameraEditorContent.axaml

@@ -64,11 +64,28 @@
         <Grid ColumnDefinitions="*,12,*">
           <StackPanel Grid.Column="0" Spacing="6">
             <TextBlock Text="{Binding [CameraEditor.Label.Username], Source={x:Static svc:Localizer.Instance}}" Foreground="{StaticResource TextSecondaryBrush}" FontSize="{StaticResource FontSizeSm}" />
-            <TextBox Text="{Binding Username, Mode=TwoWay}" PlaceholderText="{Binding [CameraEditor.Placeholder.Username], Source={x:Static svc:Localizer.Instance}}" />
+            <!-- Inline paste buttons (mobile-only, toggled in code-behind):
+                 Avalonia's long-press → context-flyout path on Android is
+                 unreliable (flyout hidden behind the soft keyboard, flaky
+                 Holding gesture on empty fields), so credentials copied from
+                 a password manager had no way into these fields. -->
+            <TextBox Name="UsernameBox" Text="{Binding Username, Mode=TwoWay}" PlaceholderText="{Binding [CameraEditor.Placeholder.Username], Source={x:Static svc:Localizer.Instance}}">
+              <TextBox.InnerRightContent>
+                <Button Name="PasteUsernameButton" Classes="paste-inline" Click="OnPasteUsername">
+                  <Path Classes="lucide" Data="{StaticResource IconPaste}" Stroke="{StaticResource TextSecondaryBrush}" Width="16" Height="16" />
+                </Button>
+              </TextBox.InnerRightContent>
+            </TextBox>
           </StackPanel>
           <StackPanel Grid.Column="2" Spacing="6">
             <TextBlock Text="{Binding [CameraEditor.Label.Password], Source={x:Static svc:Localizer.Instance}}" Foreground="{StaticResource TextSecondaryBrush}" FontSize="{StaticResource FontSizeSm}" />
-            <TextBox Text="{Binding Password, Mode=TwoWay}" PasswordChar="•" />
+            <TextBox Name="PasswordBox" Text="{Binding Password, Mode=TwoWay}" PasswordChar="•">
+              <TextBox.InnerRightContent>
+                <Button Name="PastePasswordButton" Classes="paste-inline" Click="OnPastePassword">
+                  <Path Classes="lucide" Data="{StaticResource IconPaste}" Stroke="{StaticResource TextSecondaryBrush}" Width="16" Height="16" />
+                </Button>
+              </TextBox.InnerRightContent>
+            </TextBox>
           </StackPanel>
         </Grid>
 

src/OpenIPC.Viewer.App/Views/Dialogs/CameraEditorContent.axaml.cs

@@ -2,6 +2,7 @@
 using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Interactivity;
+using OpenIPC.Viewer.App.Services;
 using OpenIPC.Viewer.App.ViewModels.Dialogs;
 
 namespace OpenIPC.Viewer.App.Views.Dialogs;
@@ -22,6 +23,12 @@ public CameraEditorContent()
 
         this.FindControl<Button>("CancelButton")!.Click += (_, _) => _tcs.TrySetResult(null);
         this.FindControl<Button>("SaveButton")!.Click += OnSave;
+
+        // Desktop has Ctrl+V and a right-click menu; the inline paste buttons
+        // exist for mobile, where the long-press flyout is unreliable.
+        var isMobile = OverlayDialogPresenter.IsMobile;
+        this.FindControl<Button>("PasteUsernameButton")!.IsVisible = isMobile;
+        this.FindControl<Button>("PastePasswordButton")!.IsVisible = isMobile;
         AttachedToVisualTree += async (_, _) =>
         {
             if (DataContext is CameraEditorViewModel vm)
@@ -35,4 +42,16 @@ private void OnSave(object? sender, RoutedEventArgs e)
         if (!vm.TryBuildRequest(out var newRequest, out var updateRequest)) return;
         _tcs.TrySetResult(new CameraEditorResult(newRequest, updateRequest));
     }
+
+    private void OnPasteUsername(object? sender, RoutedEventArgs e) =>
+        PasteInto(this.FindControl<TextBox>("UsernameBox")!);
+
+    private void OnPastePassword(object? sender, RoutedEventArgs e) =>
+        PasteInto(this.FindControl<TextBox>("PasswordBox")!);
+
+    private static void PasteInto(TextBox box)
+    {
+        box.Focus();
+        box.Paste();
+    }
 }