[gpt-6.1-sol] A blanket restriction on remote claims hid the working setup flow for Tailscale and authorized known hosts and left the opening grid unbalanced. Restore the host-labelled session card and setup demo, and make the copy safeguards reflect the supported scope rather than deny the feature.
Tests: 4 restoration checks fail without the fix; 38 Nook tests pass; bun run build; Playwright at 1440/768/375px in both themes
NOOK-1038
