Data Warehouse changes existing sync behavior

Interrupted syncs and backfills are promptly shown as failed instead of looking stuck.

Backfills retry routine shutdowns and heartbeat timeouts before asking for manual action.

Data Warehouse now imports Help Scout conversations in every status, including closed and pending. Incremental conversation and customer syncs also use fields Help Scout actually returns.

Data Warehouse accepts common Amazon S3 URL formats, including s3:// URIs and bucket URLs without an explicit region. Delta Lake tables also default to incremental syncs, and reimports avoid duplicate internal columns.

Data Warehouse keeps serving a Stripe table's previous complete version while it rebuilds. Dashboards, insights, and materialized views no longer see a partial table for the duration of a refresh.