Restore the v2.1.19 application baseline and retain only the focused import preflight summary with duplicate, unavailable, destination, job, and size-limit visibility.
Add queue search and filters, safe upload diagnostics, session report exports, account check visibility, and explicit interrupted-upload recovery.\n\nSanitize diagnostic response snippets in persisted results and rotation logs, protect CSV exports against formula injection, and add regression coverage for diagnostics and reports.