fix(core): harden protected identity startup

apple/VniDrop/Core/CoreRepository.swift

@@ -53,9 +53,10 @@ struct NativeCoreBindingFactory: CoreBindingFactory {
 		case .localOnly:
 			nativeConfiguration = CoreNetworkConfig(mode: .localOnly, relayUrls: [])
 		}
-		return try VnidropCore.initializeWithNetworkConfig(
+		return try VnidropCore.initializeWithExperimentalSavedDevices(
 			appDataDir: appDataDir,
 			eventSink: eventSink,
+			limits: defaultCoreLimits(),
 			networkConfig: nativeConfiguration
 		)
 	}

apple/VniDrop/UI/Feedback/UserFacingError.swift

@@ -38,6 +38,12 @@ extension Error {
 				return .resource(L10n.Error.generic)
 			case .InvalidInput:
 				return .resource(L10n.Error.invalidInput)
+			case .InvalidTransition:
+				return .resource(L10n.Error.invalidInput)
+			case .SecureStorageLocked, .SecureStorageUnavailable:
+				return .resource(L10n.Error.startingUp)
+			case .SecureStorageMissing, .SecureStorageCorrupted:
+				return .resource(L10n.Error.generic)
 			case .Initialization(let reason):
 				return initializationUiText(reason)
 			case .Internal(let reason):
@@ -83,7 +89,9 @@ extension Error {
 			case .Initialization(let r), .Ticket(let r), .Filesystem(let r), .FilesystemPermission(let r),
 				 .DestinationExists(let r), .StorageFull(let r), .Network(let r),
 				 .Transfer(let r), .Permission(let r), .Repository(let r), .Cancelled(let r),
-				 .InvalidInput(let r), .Internal(let r):
+				 .InvalidInput(let r), .InvalidTransition(let r), .SecureStorageLocked(let r),
+				 .SecureStorageMissing(let r), .SecureStorageCorrupted(let r),
+				 .SecureStorageUnavailable(let r), .Internal(let r):
 				return r
 			}
 		}