Port modular features into boursecu and fix desktop login UX.

Add support chat, piggy funds, PWA banner, notification/SSE sync, and messenger legacy guards while keeping boursecu theme; also balance login panels and unblock login navigation.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/views/base/home/desktop/components/DesktopHomeTopbar.vue

@@ -18,7 +18,7 @@
         @click="onInstall"
       >
         <BasicIcon icon="vuesax-linear:mobile" size="16" />
-        <span>{{ canNativeInstall ? 'نصب وب اپ' : 'آموزش نصب' }}</span>
+        <span>{{ canNativeInstall ? 'نصب وب اپلیکیشن' : 'آموزش نصب' }}</span>
       </button>
       <button
         v-if="notificationEnabled"
@@ -35,6 +35,21 @@
         </span>
         <span>اعلان</span>
       </button>
+      <button
+        v-if="chatEnabled"
+        type="button"
+        class="dhome-btn-ghost dhome-btn-ghost--notify"
+        aria-label="چت پشتیبانی"
+        @click="goSupportChat"
+      >
+        <span class="dhome-notify-wrap">
+          <BasicIcon icon="vuesax-linear:messages-2" size="16" />
+          <span v-if="chatUnreadCount > 0" class="dhome-notify-badge">
+            {{ chatUnreadCount > 99 ? '99+' : chatUnreadCount }}
+          </span>
+        </span>
+        <span>چت</span>
+      </button>
       <button type="button" class="dhome-btn-ghost" aria-label="بروزرسانی" @click="reloadApp">
         <BasicIcon icon="vuesax-linear:refresh-2" size="16" />
       </button>
@@ -52,7 +67,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, onUnmounted, ref } from 'vue'
+import { onMounted, onUnmounted, ref, computed } from 'vue'
 import BasicIcon from '@/components/BasicPacks/BasicIcon.vue'
 import { useUserStore } from '@/store/userStore'
 import { useAppNotificationBadge } from '@/composables/useAppNotificationBadge'
@@ -63,6 +78,7 @@ import {
   hasNativeInstallPrompt,
   initPwaInstallPromptListener,
 } from '@/modules/pwa/pwaInstall'
+import { unreadSupportCount, isUserSupportChatEnabled } from '@/utils/chat'
 import router from '@/router'
 
 withDefaults(
@@ -78,6 +94,8 @@ defineEmits<{
 
 const userStore = useUserStore()
 const canNativeInstall = ref(false)
+const chatEnabled = computed(() => isUserSupportChatEnabled())
+const chatUnreadCount = computed(() => unreadSupportCount.value)
 const {
   enabled: notificationEnabled,
   unreadCount,
@@ -102,6 +120,10 @@ async function goNotifications() {
   void router.push({ name: 'appNotifications' })
 }
 
+function goSupportChat() {
+  void router.push({ name: 'support' })
+}
+
 function reloadApp() {
   window.location.reload()
 }