Extend the keep-until-next-scan behaviour to the bulk delete modal: instead
of removing matched cards on success, mark them _deleted and keep them greyed
with a "🗑 Deleted" badge and hidden buttons. /api/delete_bulk now returns
deleted_ids so the grid marks exactly the items the server actually deleted —
partial failures stay active and re-deletable. Already-handled (_deleted /
_redacted) items are excluded from the bulk-delete match set so they aren't
re-counted or re-processed.
201 tests pass.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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