Kybern S3 Storage compatibility with REEID Translate

Plugin capabilities

• Offloads selected WordPress Media Library attachments to an S3-compatible object storage service while keeping regular Media Library files local for non-matched items.
• Supports FileBird-based routing scope: attachments assigned to a configured “local exception” FileBird folder can remain local, while attachments assigned to other FileBird folders are queued for S3 offload; unfiled uploads remain local until assigned.
• Generates and uses signed URLs for private buckets, and preserves the original `/wp-content/uploads/…` WordPress URL while producing a fresh signed S3 URL when the link is opened (per the plugin’s stated behavior).
• Provides migration, recovery, and retry workflows: background migration batches via WordPress cron, a recovery action to restore offloaded Media Library files back into local uploads, and retry of failed migration items without rerunning the whole library.
• Maintains S3 object key structure derived from WordPress upload paths and configured root prefix; supports custom endpoint and optional public base/CDN/CloudFront base URLs for delivery of public files.
• Implements S3 Delivery Health audit: an administrator-only background check that uses S3 metadata only (no downloads or modifications) to verify saved S3 mappings and queue failed checks for controlled retry.
• Includes optional Fluent Forms and FileBird upload workflows: routes selected Fluent Forms IDs into custom upload subdirectories and can assign matching Media Library attachments into chosen FileBird folders for S3 offload.
• Adds Circulars-specific media workflows (admin tools and import/callback options): supports an incoming S3 PDF importer (runs every five minutes under a configured incoming prefix) and a KybernAI direct circular import callback that maps a provided final S3 object key to a WordPress Media Library attachment without listing/moving archive objects.