Why: RDM settings completion is split into phases; phase 1a covers the Picker hardening, R2 member search and the acceptance false PASS fix that do not conflict with IAM U4. Evidence: plan and card only; no implementation in this commit. Impact: none on runtime. Refs: .task/feature-rdm-settings-phase1a.md Co-authored-by: Cursor <cursoragent@cursor.com>