enterStartupNetworkErrorSelfHealForTest method
Test-only seam (BEH-12, additive): drive the shared startup self-heal
helper (_enterStartupNetworkErrorSelfHeal) directly so the exception-path
self-heal (NET-021) — otherwise only reachable via a genuine init exception
inside _initializeNetworkChecking — can be exercised in isolation.
Implementation
@visibleForTesting
Future<void> enterStartupNetworkErrorSelfHealForTest() =>
_enterStartupNetworkErrorSelfHeal();