* Exclude export/import blobs and attachments from account exports
Export and import file blobs were being assigned the account's
account_id (via the Current.account default), causing subsequent
exports to include previous export/import ZIP files in the data.
This roughly doubled the export size each time and made imports
fail with an IntegrityError on unrecognized "Account::Export"
record type.
Filter out blobs attached to Export/Import records in
BlobRecordSet, FileRecordSet, and a new AttachmentRecordSet.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Use STI base type for export blob exclusion filter
Rails polymorphic_name returns base_class.name for STI models,
so ActiveStorage stores record_type as "Export" rather than the
concrete subclass names. Filter on the base type accordingly.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix export filtering for mixed-use Active Storage blobs
Exclude only internal-only blobs for account export metadata/file sets, scope attachment subqueries by account, and add regression coverage for blobs shared between user records and export attachments.
* Simplify export blob filtering
Exports always create fresh blobs, so a blob can never be legitimately
shared between an Export/Import and a real account record. Replace the
internal_only/external split with a single excluded_blob_ids subquery
and drop the contrived shared-blob test.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Daniel Pinto
ad1b10368d