A's org foundation returns org_not_configured (ok:false) plus thrown not_an_org_member / device_key_unavailable, none of which had user-facing copy — they would render as the raw code. Add friendly copy (org_not_configured ties into the add-org flow) and a focused test; fixes the ERROR_COPY-coverage test that the foundation merge left red. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01W3b8DA2mXmLWkd4zDbHXHg