chore: move appdata folder to .claudeDo

src/ClaudeDo.Worker/Program.cs

@@ -36,6 +36,8 @@ var mutex = new Mutex(true, @"Local\ClaudeDoWorker", out var createdNew);
 if (!createdNew)
     return; // another instance already owns the port; exit 0
 
+Paths.MigrateLegacyAppDataRoot();
+
 var cfg = WorkerConfig.Load();
 
 var builder = WebApplication.CreateBuilder(args);
@@ -171,9 +173,7 @@ builder.Services.AddSingleton<QueueService>();
 builder.Services.AddHostedService(sp => sp.GetRequiredService<QueueService>());
 
 // Planning session services.
-var planningSessionsDir = Path.Combine(
-    Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
-    ".todo-app", "planning-sessions");
+var planningSessionsDir = Path.Combine(Paths.AppDataRoot(), "planning-sessions");
 builder.Services.AddSingleton(sp =>
     new PlanningSessionManager(
         sp.GetRequiredService<IDbContextFactory<ClaudeDoDbContext>>(),