feat(ui): diff modal with file sidebar and tinted hunks

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ClaudeDo.App/Program.cs

@@ -108,7 +108,8 @@ sealed class Program
         sc.AddSingleton<DetailsIslandViewModel>(sp =>
             new DetailsIslandViewModel(
                 sp.GetRequiredService<IDbContextFactory<ClaudeDoDbContext>>(),
-                sp.GetRequiredService<WorkerClient>()));
+                sp.GetRequiredService<WorkerClient>(),
+                sp));
         sc.AddSingleton<IslandsShellViewModel>();
 
         return sc.BuildServiceProvider();