fix: add tvOS/watchOS guard for volumeAvailableCapacityForImportantUsageKey

Author: hyochan

packages/apple/Sources/Engine/InferenceEngine.swift

@@ -69,8 +69,8 @@ public enum InferenceEngineFactory {
     ) async throws -> any InferenceEngine {
         switch type {
         case .llamaCpp:
-            guard #available(iOS 17.0, macOS 14.0, *) else {
-                throw LocanaraError.custom(.featureNotAvailable, "LlamaCppEngine requires iOS 17.0+ or macOS 14.0+")
+            guard #available(iOS 17.0, *) else {
+                throw LocanaraError.custom(.featureNotAvailable, "LlamaCppEngine requires iOS 17.0+")
             }
             let llamaConfig = LlamaCppEngine.Configuration(
                 numThreads: config.numThreads,

packages/apple/Sources/ModelManager/ModelManager.swift

@@ -366,8 +366,8 @@ public final class ModelManager: @unchecked Sendable {
             }
 
             // Fall through to built-in LlamaCppEngine
-            guard #available(iOS 17.0, macOS 14.0, *) else {
-                throw LocanaraError.modelLoadFailed("LlamaCppEngine requires iOS 17.0+ or macOS 14.0+")
+            guard #available(iOS 17.0, *) else {
+                throw LocanaraError.modelLoadFailed("LlamaCppEngine requires iOS 17.0+")
             }
             let engine = try await LlamaCppEngine.create(
                 modelPath: modelPath,

packages/apple/Sources/ModelManager/ModelStorage.swift

@@ -313,13 +313,17 @@ public final class ModelStorage: @unchecked Sendable {
     ///
     /// - Returns: Available space in bytes
     public func getAvailableStorage() -> Int64 {
+        #if os(tvOS) || os(watchOS)
+        return 0
+        #else
         do {
             let values = try baseDirectory.resourceValues(forKeys: [.volumeAvailableCapacityForImportantUsageKey])
             return values.volumeAvailableCapacityForImportantUsage ?? 0
         } catch {
             logger.error("Failed to get available storage: \(error.localizedDescription)")
             return 0
         }
+        #endif
     }
 
     /// Check if there's enough space for a model