Why: W11 U2-U6 and the W12 partial verification are complete; the independent review's BLOCKING and MAJOR findings are repaired; the increment has reached the user stage-6 gate.
Evidence: review report committed on the RDM branch (docs/reviews/2026-10-22-increment-d-rdm-review.md); repairs d9f30cf; W12 evidence receipts for test/build/backend-pg/lifecycle under ~/.cache/agent-system-dev/agent-exec-receipts/.
Impact: Task card and review package docs only.
Refs: parent initiative feature/rdm-two-trees-followup (PR #635)
weichen
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