ConnectivityBar

A slim full-width status line pinned at the very top of a screen (above the title), reading Offline (amber) or Online (green) from the device's real network state. Shared across the Wallet, the Verify reader and any future reader, on Android and iOS — so the operator always knows the mode, which matters here because revocation can only be established online (see the verifier's status row). Render it edge-to-edge, outside the content gutter.