Plan stage no longer shows "Generating plans..." after processing completes
After a BIMIT Engine job finished processing, the plan stage could remain stuck on "Generating plans..." indefinitely — even though the pipeline had completed successfully and the key-plan preview was ready.
The stage was checking for a download link to decide whether processing was done. For accounts where full-file downloads are not yet available, that link is intentionally withheld, so the check never resolved and the loading state never cleared. The same logic was also keeping a background polling loop running long after it should have stopped. Both have been corrected. The plan stage now marks itself complete as soon as the underlying assets are generated, regardless of whether download access is enabled. The key-plan PNG renders inline at that point, as expected. Download buttons for the full PDF and Revit file remain gated where applicable — that behavior is unchanged.