- CORSMiddleware con dominio de produccion y localhost - SecurityHeadersMiddleware: X-Frame-Options, CSP, nosniff, referrer-policy - Titulo de app actualizado a PrintForge v2.2.0
- Fase A: license templates, search history, cost estimator - Fase B: import URL, bulk ZIP, batch download - Fase C: comparison mode, mesh validation, measurement tool - Fase D: cross-section clipping, overhang heatmap, layer animation - Refactor Pydantic/SQLAlchemy warnings - 24 tests pytest - README actualizado - WebP thumbnails, lazy loading, cache headers