fix(openwrt): enable radio0 and run wifi up before scanning

On a freshly-flashed OpenWrt router, radio0 is disabled by default so
iw dev returns empty. Detect the PHY via /sys/class/ieee80211/, enable
radio0, run `wifi up`, then poll up to 8s for netifd to create the
virtual interface before handing it to iwinfo scan.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

core/archipelago/src/api/rpc/middleware.rs

@@ -73,6 +73,7 @@ pub(super) fn sanitize_error_message(msg: &str) -> String {
         "apk update failed",
         "No wireless interface",
         "No wireless radio",
+        "WiFi radio enabled but",
         "Missing required field",
     ];
     for prefix in &user_facing_prefixes {