feat(ui): show newest log entries first in Log Visualizer

Reverses row order in LogVisualizerViewModel.Apply() so the most recent
entry sits at index 0, matching the "what just happened" use case;
filtering and refresh are unaffected since the reversal happens after
the warn/error filter is applied.

src/ClaudeDo.Ui/ViewModels/Modals/LogVisualizerViewModel.cs

@@ -45,7 +45,7 @@ public sealed partial class LogVisualizerViewModel : ViewModelBase
         IEnumerable<WorkerLogEntry> items = WarnErrorOnly
             ? _all.Where(e => e.Level is WorkerLogLevel.Warn or WorkerLogLevel.Error)
             : _all;
-        foreach (var e in items)
+        foreach (var e in items.Reverse())
             Rows.Add(new LogVisualizerRow(e.TimestampUtc.ToLocalTime().ToString("HH:mm:ss"), e.Message, e.Level));
         StatusText = Rows.Count == 0
             ? Loc.T("modals.logVisualizer.empty")

src/ClaudeDo.Ui/Views/Modals/LogVisualizerView.axaml

@@ -36,7 +36,7 @@
                 Command="{Binding RefreshCommand}"/>
       </Grid>
 
-      <!-- Last 30 min, oldest-first -->
+      <!-- Last 30 min, newest-first -->
       <Border Classes="terminal" Margin="14,0,14,14">
         <ScrollViewer VerticalScrollBarVisibility="Visible" AllowAutoHide="False" Padding="10,8">
           <ItemsControl ItemsSource="{Binding Rows}">

tests/ClaudeDo.Ui.Tests/ViewModels/LogVisualizerViewModelTests.cs

@@ -16,14 +16,17 @@ public class LogVisualizerViewModelTests
     private static WorkerLogEntry E(WorkerLogLevel lvl, string msg)
         => new(msg, lvl, new DateTime(2026, 6, 23, 8, 0, 0, DateTimeKind.Utc));
 
+    private static WorkerLogEntry E(WorkerLogLevel lvl, string msg, DateTime timestampUtc)
+        => new(msg, lvl, timestampUtc);
+
     [Fact]
-    public async Task Refresh_populates_rows_from_worker()
+    public async Task Refresh_populates_rows_from_worker_newest_first()
     {
         var vm = new LogVisualizerViewModel(new FakeClient(new[] { E(WorkerLogLevel.Info, "a"), E(WorkerLogLevel.Error, "b") }));
 
         await vm.RefreshAsync();
 
-        Assert.Equal(new[] { "a", "b" }, vm.Rows.Select(r => r.Message));
+        Assert.Equal(new[] { "b", "a" }, vm.Rows.Select(r => r.Message));
     }
 
     [Fact]
@@ -35,7 +38,7 @@ public class LogVisualizerViewModelTests
 
         vm.WarnErrorOnly = true;
 
-        Assert.Equal(new[] { "w", "e" }, vm.Rows.Select(r => r.Message));
+        Assert.Equal(new[] { "e", "w" }, vm.Rows.Select(r => r.Message));
     }
 
     [Fact]
@@ -48,4 +51,38 @@ public class LogVisualizerViewModelTests
         Assert.Empty(vm.Rows);
         Assert.False(string.IsNullOrEmpty(vm.StatusText));
     }
+
+    [Fact]
+    public async Task Refresh_orders_newest_entry_first()
+    {
+        var t0 = new DateTime(2026, 6, 23, 8, 0, 0, DateTimeKind.Utc);
+        var vm = new LogVisualizerViewModel(new FakeClient(new[]
+        {
+            E(WorkerLogLevel.Info, "oldest", t0),
+            E(WorkerLogLevel.Info, "middle", t0.AddMinutes(1)),
+            E(WorkerLogLevel.Info, "newest", t0.AddMinutes(2)),
+        }));
+
+        await vm.RefreshAsync();
+
+        Assert.Equal(new[] { "newest", "middle", "oldest" }, vm.Rows.Select(r => r.Message));
+    }
+
+    [Fact]
+    public async Task Refresh_orders_newest_entry_first_with_warn_error_only()
+    {
+        var t0 = new DateTime(2026, 6, 23, 8, 0, 0, DateTimeKind.Utc);
+        var vm = new LogVisualizerViewModel(new FakeClient(new[]
+        {
+            E(WorkerLogLevel.Warn, "oldest", t0),
+            E(WorkerLogLevel.Info, "skipped", t0.AddMinutes(1)),
+            E(WorkerLogLevel.Error, "middle", t0.AddMinutes(2)),
+            E(WorkerLogLevel.Warn, "newest", t0.AddMinutes(3)),
+        }));
+        await vm.RefreshAsync();
+
+        vm.WarnErrorOnly = true;
+
+        Assert.Equal(new[] { "newest", "middle", "oldest" }, vm.Rows.Select(r => r.Message));
+    }
 }