Why: Finish Dev #488 with delivered Frontend and RDM objects, explicit audit grants in private browser fixtures, and owned process cleanup. Evidence: Tool-imported SELF precheck, final sync, make test, and real-browser runs retain failures and passes; latest isolated runtime completed seven browser cases. Final exact-head GATE and independent parent Review follow. Impact: Preserves other main components and existing CI jobs while the one final candidate is fixed for formal checks. Refs: Dev PR #488; Frontend PR #73; RDM PR #301; queue Issue #518