Viktor Barzin ceb943f198 Fix refresh listings returning immediate success with no progress ... The get_ids_to_process function was using set union instead of set difference, causing it to return all existing listing IDs along with new ones. This meant: 1. When there were no new listings, the task would iterate through all existing listings, find nothing to process for each, and complete almost instantly 2. The task showed no progress because processing was too fast Fixed by: - Changed `all_listing_ids.union(identifiers)` to `identifiers - all_listing_ids` to only return IDs that are NOT already in the database - Added explicit check for empty set with informative task state "No new listings found" so users understand why the task completed quickly		2026-02-01 22:30:37 +00:00
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listing_tasks.py	Fix refresh listings returning immediate success with no progress	2026-02-01 22:30:37 +00:00
task_state.py	migrate background tasks to celery	2025-06-22 21:18:52 +00:00