chainkey_platform_interface 0.1.1

Common platform interface for the chainkey federated plugin.

0.1.1

• Add typed exception hierarchy (ChainkeyException, UserCancelledException, KeyPermanentlyInvalidatedException, BiometricsUnavailableException, HardwareEnclaveException, PasskeyException).
• Add deterministic platform error mapping (ChainkeyException.fromPlatformException).
• Add core domain models for cryptographic primitives (P256Signature, PasskeyCredential, BiometricPromptOptions).
• Add Pigeon IDL contracts for HardwareEnclaveHostApi and WebAuthnHostApi.

0.1.0

• Initial release of chainkey federated plugin package.