4dde5d6342
Test 07 second half exercises a rename from the wn side, but GROUP_02 is created by amy, so amy is the sole admin. wn's ensure_account_is_group_admin silently refuses B's rename and never publishes anything. The test design assumed a symmetric admin set; the MIP-01 admin check makes that explicit. Add an `amy marmot group promote <B>` step between amy's rename and B's rename so B is admin when it tries, matching the real round-trip intent. Also sleep 3s to let wn apply the promote commit before firing the rename. https://claude.ai/code/session_1469d7f4-bb66-4ffa-a44d-1dfa4b526484