Why: Existing RDM role commands must reach the Backend authority during UI and migration cutover without dual-writing RDM role tables.
Evidence: The full Backend suite passed, including actor-bound role administration, owner compatibility, provider, and public-surface tests.
Impact: Adds temporary trusted Host administration methods and completes the project-action catalog used by RDM.
Refs: Focused role and permission system task 5
weichen
94732f3c87