Why: bind the task validation checkpoint to the integration baseline. Evidence: SELF recursive component checks; sync_base=b7636742fc9ea937e6030123afc608fd294861bf; before_record=d8fcc0d6f6d854fda7a92ddfdcda7d0bb8c5304a. Impact: task metadata only. Refs: .task/fix-rdm-pin-advance-latest.md