Vectorize Progress Tracking

Vectorize Progress Tracking uses the RQ job queue to track status and progress of asynchronous embedding jobs. Vectorize Progress Tracking obtains chunk counts from DuckDB service to compute embedding progress accurately. Vectorize Progress Tracking queries the RQ job queue and chunk counts to provide accurate vectorization progress percentages. Direct communicator Jesper prefers the longer fix implementing vectorize progress tracking rather than just quick AI summary fixes.