Why: Non-root managers need the system-management entry and controls to follow their explicit grants.
Evidence: The full Backend test suite passed and /api/me action projection is covered by the grant-isolation test.
Impact: /api/me now returns only the current actor system actions evaluated by the same authorizer.
Refs: Focused role and permission system task 7
Why: System, role, and project entry permissions need explicit actions instead of a single administrator flag or unrestricted project creation.
Evidence: The full Backend test suite passed, including role APIs, action isolation, project.create denial/allow, storage migration coverage, and account write fences.
Impact: Adds versioned role and grant endpoints, maps account actions to explicit permissions, and requires project.create authority.
Refs: Focused role and permission system task 3