fix: [sales] Alpine.js promoFreeMonths 미정의 및 closeModal 미정의 오류 수정

- product-selection: Alpine x-data에 promoFreeMonths 속성 추가 및 저장 데이터에 포함
- price-simulator: promoFreeMonths 속성 추가 및 resetPromo()에 초기화 추가
- DemoTenantController: HX-Boosted 제외 조건 제거하여 hx-boost 탐색 시에도 전체 페이지 로드

app/Http/Controllers/Sales/DemoTenantController.php

@@ -37,7 +37,7 @@ class DemoTenantController extends Controller
      */
     public function index(Request $request): View
     {
-        if ($request->header('HX-Request') && ! $request->header('HX-Boosted')) {
+        if ($request->header('HX-Request')) {
             return response('', 200)->header('HX-Redirect', route('sales.demo-tenants.index'));
         }
 

resources/views/sales/modals/partials/product-selection.blade.php

@@ -491,6 +491,7 @@ function productSelection() {
         promoDevWaive: {{ !empty($savedPromotion['dev_waive']) ? 'true' : 'false' }},
         promoSubPercent: {{ $savedPromotion['sub_discount_percent'] ?? 0 }},
         promoFreeTrial: {{ !empty($savedPromotion['free_trial']) ? 'true' : 'false' }},
+        promoFreeMonths: {{ $savedPromotion['free_months'] ?? 0 }},
         promoNote: '{{ addslashes($savedPromotion['note'] ?? '') }}',
 
         isSelected(id) {
@@ -714,6 +715,7 @@ function productSelection() {
                             dev_waive: this.promoDevWaive,
                             sub_discount_percent: this.promoSubPercent,
                             free_trial: this.promoFreeTrial,
+                            free_months: this.promoFreeMonths,
                             note: this.promoNote,
                         };
                     }

resources/views/sales/price-simulator/index.blade.php

@@ -1295,6 +1295,7 @@ function buildRequiredSelected(catId) {
         promoWaiveRegistration: false,
         promoSubscriptionPercent: 0,
         promoFreeTrial: false,
+        promoFreeMonths: 0,
         promoNote: '',
 
         // --- 카테고리 선택 (상호 배타) ---
@@ -1531,6 +1532,7 @@ function buildRequiredSelected(catId) {
             this.promoWaiveRegistration = false;
             this.promoSubscriptionPercent = 0;
             this.promoFreeTrial = false;
+            this.promoFreeMonths = 0;
             this.promoNote = '';
         },