Remove ZIP code step from onboarding, use home profile instead

ZIP code was US-only and redundant now that the suggestion engine
uses home profile features (heating, pool, etc.) for personalization.

Onboarding flow: Welcome → Value Props → Name → Account → Verify →
Home Profile → Task Selection (was: ...Verify → ZIP → Home Profile...)

Removed regionalTemplates references from task selection view.
Both iOS and Compose flows updated.

composeApp/src/commonMain/kotlin/com/tt/honeyDue/viewmodel/OnboardingViewModel.kt

@@ -201,14 +201,14 @@ class OnboardingViewModel : ViewModel() {
                 if (_userIntent.value == OnboardingIntent.JOIN_EXISTING) {
                     OnboardingStep.JOIN_RESIDENCE
                 } else {
-                    OnboardingStep.RESIDENCE_LOCATION
+                    OnboardingStep.HOME_PROFILE
                 }
             }
             OnboardingStep.JOIN_RESIDENCE -> {
                 completeOnboarding()
                 OnboardingStep.JOIN_RESIDENCE
             }
-            OnboardingStep.RESIDENCE_LOCATION -> OnboardingStep.HOME_PROFILE
+            OnboardingStep.RESIDENCE_LOCATION -> OnboardingStep.HOME_PROFILE  // Skip past if somehow reached
             OnboardingStep.HOME_PROFILE -> OnboardingStep.FIRST_TASK
             OnboardingStep.FIRST_TASK -> {
                 completeOnboarding()
@@ -253,7 +253,6 @@ class OnboardingViewModel : ViewModel() {
     fun skipStep() {
         when (_currentStep.value) {
             OnboardingStep.VALUE_PROPS,
-            OnboardingStep.RESIDENCE_LOCATION,
             OnboardingStep.HOME_PROFILE -> nextStep()
             OnboardingStep.JOIN_RESIDENCE,
             OnboardingStep.FIRST_TASK,