iOS: configurable voice wake words

apps/ios/Sources/Voice/VoiceWakePreferences.swift

@@ -0,0 +1,29 @@
+import Foundation
+
+enum VoiceWakePreferences {
+    static let enabledKey = "voiceWake.enabled"
+    static let triggerWordsKey = "voiceWake.triggerWords"
+
+    // Keep defaults aligned with the mac app.
+    static let defaultTriggerWords: [String] = ["clawd", "claude"]
+
+    static func loadTriggerWords(defaults: UserDefaults = .standard) -> [String] {
+        defaults.stringArray(forKey: self.triggerWordsKey) ?? self.defaultTriggerWords
+    }
+
+    static func saveTriggerWords(_ words: [String], defaults: UserDefaults = .standard) {
+        defaults.set(words, forKey: self.triggerWordsKey)
+    }
+
+    static func sanitizeTriggerWords(_ words: [String]) -> [String] {
+        let cleaned = words
+            .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+            .filter { !$0.isEmpty }
+        return cleaned.isEmpty ? Self.defaultTriggerWords : cleaned
+    }
+
+    static func displayString(for words: [String]) -> String {
+        let sanitized = self.sanitizeTriggerWords(words)
+        return sanitized.joined(separator: ", ")
+    }
+}