chore: agregar issues 0026-0032 y worktrees a gitignore

Registra los nuevos issues pendientes en el indice y excluye
la carpeta worktrees/ del control de versiones.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -18,4 +18,7 @@ e2e/test-results/
 e2e/.auth/
 e2e/.env
 e2e/element-web/
-e2e/playwright-report/
+e2e/playwright-report/
+
+# Parallel worktrees (parallel-fix-issues skill)
+worktrees/