v0.5.7

Release 0.5.7\n\nHighlights:\n- CI smoke test for generated Astro projects (Node 20 in CI).\n- Redirect improvements: identity filtering plus redirect summary/report output.\n- RSS-based crawl seeding fallback when sitemap entries are empty.\n- Improved sparse-sitemap follow-up guidance.\n- Auth storage-state stale-cookie diagnostics.\n\nValidation: python -m pytest -q (71 passed).

v0.5.6

Release v0.5.6: version sync and binary fix