Wireless client mode (connect to WiFi as client): - settings/wifi/client API: state, scan, connect, disconnect, route - Internet Connection topbar dialog and functional Settings > Networking card - routing toggle syncing UCI flag and daemon state - fix trailing-slash hash routes (View not available) - hidden-SSID filtering, encryption classification (Open/WPA2/WPA3/mixed) - tests for client state, scan parsing, connect/disconnect, routing