Developer reproduction fixture: salient. Not an installable plugin. Read and adapt the explicit staging URL, database and prefix guard in common.php. Use a disposable staging copy with the exact recorded versions and dependencies. The scripts intentionally create synthetic data; keep external HTTP, mail and payments blocked. Run the test file through WP-CLI eval-file after activation. Theme tests also require the metadata JSON and the product slug as an argument. Real3D uses synthetic-reader.pdf in wp-content/uploads/catalog-evidence/batch7/. A shared-core helper test does not prove Pro-exclusive features. Matched checks are bounded observations, not a security certificate or a complete production workflow. Custom lab viewers are labeled; native Elementor examples are separately identified. No service worker is needed for the static SuperPWA viewer.