docs(debug-journal): fold in the 2026-10-12 queue slice (11 candidates); mark GH#5438/#5492 fixed (#5439/#5493), GH#5472 and the GH#4900 compare-plan leak fixed (#5488/#5465), sigenergy docs split fixed (#5464), ML retrain interval configurable (#5433)

docs(debug-journal): fold in the 2026-10-12 queue slice (11 candidates); mark GH#5438/#5492 fixed (#5439/#5493), GH#5472 and the GH#4900 compare-plan leak fixed (#5488/#5465), sigenergy docs split fixed (#5464), ML retrain interval configurable (#5433) #7872