chore: move appdata folder to .claudeDo

src/ClaudeDo.Worker/Planning/PlanningSessionManager.cs

@@ -382,7 +382,7 @@ public sealed class PlanningSessionManager
         await File.WriteAllTextAsync(path, token, ct);
         // Best-effort current-user-only ACL on Windows. On non-Windows the inherited
         // perms from the parent dir apply; acceptable because sessionDir is already
-        // under the user's home (~/.todo-app/sessions/).
+        // under the user's home (~/.claudeDo/sessions/).
         if (OperatingSystem.IsWindows())
         {
             try

src/ClaudeDo.Worker/Planning/WindowsTerminalLauncher.cs

@@ -8,7 +8,7 @@
 //   wt.exe treats ';' as a tab/command delimiter in EVERY argument, regardless of
 //   quoting (microsoft/terminal#13264), so nothing containing ';' may appear on the wt
 //   command line. Every token we place there is a controlled constant or a filesystem
-//   path under ~/.todo-app/sessions/<taskId> — none can contain ';' — and each is
+//   path under ~/.claudeDo/sessions/<taskId> — none can contain ';' — and each is
 //   single-quoted for PowerShell.
 //
 //   The free-text task brief is NEVER passed as an argument. An interactive `claude`