refactor(ui): replace modal dialogs with toast/sheet components

Remove DialogVant/NotifyVant and add Toast and Sheet components with
useToast, useReveal, and usePageTransition composables. Rework
Navigation, RegisterView, and styles across both apps; rebuild dist assets.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/user-app-v2/src/App.vue

@@ -19,35 +19,28 @@
       </router-view>
     </component>
 
-    <DialogVantOneButton :timeOut="-1" v-model:show="versionDialog" :closeOnClickOverlay="true">
-      <template v-slot:img>
-        <DotLottieVue
-          class="w-full aspect-square"
-          autoplay
-          loop
-          src="https://lottie.host/cb620e8e-c64a-42e8-a6b5-8844146e5999/nmft7oBO8q.json"
-        />
-      </template>
+    <IslandSheet
+      v-model:show="versionDialog"
+      art="update"
+      title="نسخه جدید منتزر منتشر شد!"
+      description="برای استفاده از آخرین امکانات و بهبودها، برنامه را به روز رسانی کنید."
+      confirm-text="به روز رسانی"
+      cancel-text="بعداً"
+      @confirm="update()"
+    />
 
-      <template v-slot:title>
-        <div class="p-8 text-justify">نسخه جدید منتزر منتشر شد!</div>
-      </template>
-
-      <template v-slot:button>
-        <div class="text-center text-[#1C2D56]" @click="update()">به روز رسانی</div>
-      </template>
-    </DialogVantOneButton>
+    <ToastHost />
   </div>
 </template>
 
 <script setup lang="ts">
 import { computed, onMounted, ref } from 'vue'
 import { useRouter } from 'vue-router'
-import { DotLottieVue } from '@lottiefiles/dotlottie-vue'
 import { useRegisterSW } from 'virtual:pwa-register/vue'
 import MasterLayout from './layout/MasterLayout.vue'
 import FullPageLayout from './layout/FullPageLayout.vue'
-import DialogVantOneButton from './components/DialogVantOneButton.vue'
+import IslandSheet from './components/ui/IslandSheet.vue'
+import ToastHost from './components/ui/ToastHost.vue'
 import { useRefresh } from './composables/useRefresh'
 import pkg from '../package.json'