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/src/App.vue

@@ -34,9 +34,11 @@
       </template>
 
       <template v-slot:button>
-        <div class="text-center text-[#1C2D56]" @click="update()">به روز رسانی</div>
+        <div class="text-center text-[#23493c]" @click="update()">به روز رسانی</div>
       </template>
     </DialogVantOneButton>
+
+    <ToastHost />
   </div>
 </template>
 
@@ -48,6 +50,7 @@ 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 ToastHost from './components/ui/ToastHost.vue'
 import { useRefresh } from './composables/useRefresh'
 import pkg from '../package.json'