core/secure_storage_adapter library

Classes

FakeSecureStorageAdapter: In-memory SecureStorageAdapter for consumer contract tests — never touches a real keystore/Keychain. Register it with Get.put<SecureStorageAdapter>(FakeSecureStorageAdapter()) in a test that needs SecureStorage to actually succeed instead of failing with "no adapter registered".
SecureStorage: The actual call surface for secure values — wraps SecureStorageAdapter with the typed SdkResult contract, key validation, and a clear, typed failure (never a silent fallback to regular storage) when no adapter is registered.
SecureStorageAdapter: Platform-neutral secure-storage seam — the package pulls in no concrete secure-storage SDK (no flutter_secure_storage, no Keychain/Keystore wrapper); a consuming app registers its own adapter via Get.put<SecureStorageAdapter>(myAdapter, permanent: true), same pattern as PurchaseSeam/CloudSaveProvider/AnalyticsProvider. A typical real implementation just forwards these 4 methods to flutter_secure_storage's FlutterSecureStorage (Keychain on iOS, EncryptedSharedPreferences/Keystore on Android) — this seam doesn't pick that dependency for you.