Release v1.18.0: Add iOS-APP-developer and promptfoo-evaluation skills

### Added
- **New Skill**: iOS-APP-developer v1.1.0 - iOS development with XcodeGen, SwiftUI, and SPM
  - XcodeGen project.yml configuration
  - SPM dependency resolution
  - Device deployment and code signing
  - Camera/AVFoundation debugging
  - iOS version compatibility handling
  - Library not loaded @rpath framework error fixes
  - State machine testing patterns for @MainActor classes
  - Bundled references: xcodegen-full.md, camera-avfoundation.md, swiftui-compatibility.md, testing-mainactor.md

- **New Skill**: promptfoo-evaluation v1.0.0 - LLM evaluation framework using Promptfoo
  - Promptfoo configuration (promptfooconfig.yaml)
  - Python custom assertions
  - llm-rubric for LLM-as-judge evaluations
  - Few-shot example management
  - Model comparison and prompt testing
  - Bundled reference: promptfoo_api.md

### Changed
- Updated marketplace version from 1.16.0 to 1.18.0
- Updated marketplace skills count from 23 to 25
- Updated skill-creator to v1.2.2:
  - Fixed best practices documentation URL (platform.claude.com)
  - Enhanced quick_validate.py to exclude file:// prefixed paths from validation
- Updated marketplace.json metadata description to include new skills

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

iOS-APP-developer/references/swiftui-compatibility.md

@@ -0,0 +1,190 @@
+# SwiftUI iOS Version Compatibility
+
+## iOS 17 vs iOS 16 API Differences
+
+### View Modifiers
+
+#### onChange
+
+```swift
+// iOS 17+ (dual parameter)
+.onChange(of: value) { oldValue, newValue in
+    // Can compare old and new
+}
+
+// iOS 16 (single parameter)
+.onChange(of: value) { newValue in
+    // Only new value available
+}
+```
+
+#### sensoryFeedback (iOS 17+)
+
+```swift
+// iOS 17+
+.sensoryFeedback(.impact, trigger: triggerValue)
+
+// iOS 16 fallback
+UIImpactFeedbackGenerator(style: .medium).impactOccurred()
+```
+
+### Views
+
+#### ContentUnavailableView (iOS 17+)
+
+```swift
+// iOS 17+
+ContentUnavailableView(
+    "No Results",
+    systemImage: "magnifyingglass",
+    description: Text("Try a different search")
+)
+
+// iOS 16 fallback
+VStack(spacing: 16) {
+    Image(systemName: "magnifyingglass")
+        .font(.system(size: 48))
+        .foregroundStyle(.secondary)
+    Text("No Results")
+        .font(.title2.bold())
+    Text("Try a different search")
+        .font(.subheadline)
+        .foregroundStyle(.secondary)
+}
+.frame(maxWidth: .infinity, maxHeight: .infinity)
+```
+
+#### Inspector (iOS 17+)
+
+```swift
+// iOS 17+
+.inspector(isPresented: $showInspector) {
+    InspectorContent()
+}
+
+// iOS 16 fallback: Use sheet or sidebar
+.sheet(isPresented: $showInspector) {
+    InspectorContent()
+}
+```
+
+### Observation
+
+#### @Observable Macro (iOS 17+)
+
+```swift
+// iOS 17+ with @Observable
+@Observable
+class ViewModel {
+    var count = 0
+}
+
+struct ContentView: View {
+    var viewModel = ViewModel()
+    var body: some View {
+        Text("\(viewModel.count)")
+    }
+}
+
+// iOS 16 with ObservableObject
+class ViewModel: ObservableObject {
+    @Published var count = 0
+}
+
+struct ContentView: View {
+    @StateObject var viewModel = ViewModel()
+    var body: some View {
+        Text("\(viewModel.count)")
+    }
+}
+```
+
+### Audio
+
+#### AVAudioApplication (iOS 17+)
+
+```swift
+// iOS 17+
+let permission = AVAudioApplication.shared.recordPermission
+AVAudioApplication.requestRecordPermission { granted in }
+
+// iOS 16
+let permission = AVAudioSession.sharedInstance().recordPermission
+AVAudioSession.sharedInstance().requestRecordPermission { granted in }
+```
+
+### Animations
+
+#### Symbol Effects (iOS 17+)
+
+```swift
+// iOS 17+
+Image(systemName: "heart.fill")
+    .symbolEffect(.bounce, value: isFavorite)
+
+// iOS 16 fallback
+Image(systemName: "heart.fill")
+    .scaleEffect(isFavorite ? 1.2 : 1.0)
+    .animation(.spring(), value: isFavorite)
+```
+
+### Data
+
+#### SwiftData (iOS 17+)
+
+```swift
+// iOS 17+ with SwiftData
+@Model
+class Item {
+    var name: String
+    var timestamp: Date
+}
+
+// iOS 16: Use CoreData or third-party (Realm)
+// CoreData: NSManagedObject subclass
+// Realm: Object subclass with @Persisted properties
+```
+
+## Conditional Compilation
+
+For features that must use iOS 17 APIs when available:
+
+```swift
+if #available(iOS 17.0, *) {
+    ContentUnavailableView("Title", systemImage: "icon")
+} else {
+    LegacyEmptyView()
+}
+```
+
+For view modifiers:
+
+```swift
+extension View {
+    @ViewBuilder
+    func onChangeCompat<V: Equatable>(of value: V, perform: @escaping (V) -> Void) -> some View {
+        if #available(iOS 17.0, *) {
+            self.onChange(of: value) { _, newValue in
+                perform(newValue)
+            }
+        } else {
+            self.onChange(of: value, perform: perform)
+        }
+    }
+}
+```
+
+## Minimum Deployment Targets by Feature
+
+| Feature | Minimum iOS |
+|---------|-------------|
+| SwiftUI basics | 13.0 |
+| @StateObject | 14.0 |
+| AsyncImage | 15.0 |
+| .searchable | 15.0 |
+| NavigationStack | 16.0 |
+| .navigationDestination | 16.0 |
+| @Observable | 17.0 |
+| ContentUnavailableView | 17.0 |
+| SwiftData | 17.0 |
+| .onChange (dual param) | 17.0 |