test(ios): add unit test target

apps/ios/Tests/VoiceWakePreferencesTests.swift

@@ -0,0 +1,26 @@
+import Foundation
+import Testing
+@testable import Clawdis
+
+@Suite struct VoiceWakePreferencesTests {
+    @Test func sanitizeTriggerWordsTrimsAndDropsEmpty() {
+        #expect(VoiceWakePreferences.sanitizeTriggerWords([" clawd ", "", " \nclaude\t"]) == ["clawd", "claude"])
+    }
+
+    @Test func sanitizeTriggerWordsFallsBackToDefaultsWhenEmpty() {
+        #expect(VoiceWakePreferences.sanitizeTriggerWords(["", "  "]) == VoiceWakePreferences.defaultTriggerWords)
+    }
+
+    @Test func displayStringUsesSanitizedWords() {
+        #expect(VoiceWakePreferences.displayString(for: ["", " "]) == "clawd, claude")
+    }
+
+    @Test func loadAndSaveTriggerWordsRoundTrip() {
+        let suiteName = "VoiceWakePreferencesTests.\(UUID().uuidString)"
+        let defaults = UserDefaults(suiteName: suiteName)!
+
+        #expect(VoiceWakePreferences.loadTriggerWords(defaults: defaults) == VoiceWakePreferences.defaultTriggerWords)
+        VoiceWakePreferences.saveTriggerWords(["computer"], defaults: defaults)
+        #expect(VoiceWakePreferences.loadTriggerWords(defaults: defaults) == ["computer"])
+    }
+}