test(mac): cover voice wake helpers

apps/macos/Tests/ClawdisIPCTests/VoiceWakeHelpersTests.swift

@@ -0,0 +1,23 @@
+import Testing
+@testable import Clawdis
+
+struct VoiceWakeHelpersTests {
+    @Test func sanitizeTriggersTrimsAndDropsEmpty() {
+        let cleaned = sanitizeVoiceWakeTriggers(["  hi  ", " ", "\n", "there"])
+        #expect(cleaned == ["hi", "there"])
+    }
+
+    @Test func sanitizeTriggersFallsBackToDefaults() {
+        let cleaned = sanitizeVoiceWakeTriggers(["   ", ""])
+        #expect(cleaned == defaultVoiceWakeTriggers)
+    }
+
+    @Test func normalizeLocaleStripsCollation() {
+        #expect(normalizeLocaleIdentifier("en_US@collation=phonebook") == "en_US")
+    }
+
+    @Test func normalizeLocaleStripsUnicodeExtensions() {
+        #expect(normalizeLocaleIdentifier("de-DE-u-co-phonebk") == "de-DE")
+        #expect(normalizeLocaleIdentifier("ja-JP-t-ja") == "ja-JP")
+    }
+}