Record that the app's HTTPS-only-in-release / HTTP-in-debug rule (ServerUrl,
allowInsecureHttp = BuildConfig.DEBUG) is backed at the platform socket layer
by an explicit network security config: main/release forbids all cleartext, a
debug override re-permits cleartext to loopback only. Matches the fix in
RunicGateway/Android-app (fix/manifest-cleartext-traffic).
Co-Authored-By: Claude <noreply@anthropic.com>