feat: accounting integration (D27), SMS relay driver (D26), rebuild user apps

- Add Tahesab/Zarrin accounting sync module with admin panel UI
- Add SMS relay driver as default provider, refactor SMS into driver pattern
- Update customer services, orders, products, and catalog queries
- Rebuild user-app and user-app-v2 dist assets
- Add Prisma migration for accounting tables
- Update docker-compose and env examples
- Update parity docs (DECISIONS, ISSUES, PROGRESS)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/admin-panel/src/views/customer/CustomerDetail.vue

@@ -42,6 +42,9 @@
       </div>
     </a-card>
 
+    <!-- D27 — link and balance in the accounting software. -->
+    <CustomerAccountingCard :customer-id="id" />
+
     <a-tabs class="mt-4" :default-active-key="defaultTab">
       <a-tab-pane key="orders" tab="سفارش ها">
         <a-table
@@ -115,6 +118,7 @@ import { onMounted, ref } from 'vue';
 import { useRoute } from 'vue-router';
 import { jdate, jdateTime } from '../../utils/filters';
 import api from '../../api/client';
+import CustomerAccountingCard from '../../components/accounting/CustomerAccountingCard.vue';
 
 const props = withDefaults(
   defineProps<{