feat(ios): sync wake words via gateway

apps/ios/Tests/VoiceWakeGatewaySyncTests.swift

@@ -0,0 +1,23 @@
+import Foundation
+import Testing
+@testable import Clawdis
+
+@Suite struct VoiceWakeGatewaySyncTests {
+    @Test func decodeGatewayTriggersFromJSONSanitizes() {
+        let payload = #"{"triggers":[" clawd  ","", "computer"]}"#
+        let triggers = VoiceWakePreferences.decodeGatewayTriggers(from: payload)
+        #expect(triggers == ["clawd", "computer"])
+    }
+
+    @Test func decodeGatewayTriggersFromJSONFallsBackWhenEmpty() {
+        let payload = #"{"triggers":["  ",""]}"#
+        let triggers = VoiceWakePreferences.decodeGatewayTriggers(from: payload)
+        #expect(triggers == VoiceWakePreferences.defaultTriggerWords)
+    }
+
+    @Test func decodeGatewayTriggersFromInvalidJSONReturnsNil() {
+        let triggers = VoiceWakePreferences.decodeGatewayTriggers(from: "not json")
+        #expect(triggers == nil)
+    }
+}
+