Why: The approved A1-A4 and delegated-actor repairs now have fixed Backend/RDM source candidates and reviewable local verification.
Evidence: The task card contains tool-written SELF receipts for exact Backend test/build, isolated PostgreSQL, RDM source overlay, Frontend/UI tests/build, browser account flows, and Dev governance.
Impact: Prepares stage 6 human review while preserving separate stage 7, trusted Backend tag, formal RDM pin, CI, PR, merge and production boundaries.
Refs: Documents U3 r1 c236d30, amendments fb3a821 and 5783940, Backend 7492fea, RDM source 98f50be.
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