expo-local-authentication already works on Android (fingerprint / face unlock /
device PIN — the module auto-adds the biometric permission, no app.config change
needed). Only the settings description was iOS-flavoured ("Face ID, Touch ID");
add an Android variant and pick by Platform.OS. The lock screen + biometric
prompt strings were already generic.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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