Why: the rdm-audit entry must hide on plain bases lacking rdm.inspect.*
commands (2026-10-12 diagnostic, increment 2), and the dev-repo e2e driver
needs a plain-base phase to prove it end to end.
Evidence: frontend e058adc carries the gating (vitest 23 files / 112 tests
incl. new contract matrix; tsc -b && vite build pass); full e2e rerun
follows this commit (RDM combo + plain base phases).
Impact: modules/frontend pin 360d640 -> e058adc; scripts/e2e.sh gains
phase 4 (same $DATA served by the base CLI, plain-base.playwright.ts);
task card records scope, authorization chain and stage table.
Refs: 2026-10-12 diagnostic report, increment 2.