- Migration 0006: cloud_items, cloud_item_topics, cloud_folder_states tables - cloud_connections: add display_name_override column for same-provider disambiguation - CloudItem, CloudItemTopic, CloudFolderState ORM models with owner/connection indexes - Unique (connection_id, provider_item_id) boundary; no MinIO object_key field - Root folder state representable as parent_ref='' without CloudItem parent row - services/cloud_items.py: resolve_owned_connection, upsert, list, reconcile, folder state - 17 unit/integration tests covering model fields, isolation, quota invariant, idempotency
Generic single-database configuration with an async dbapi.