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/user-app/src/main.ts

@@ -1,6 +1,8 @@
 import { createApp } from 'vue';
 import { createPinia } from 'pinia';
 import VueLazyLoad from 'vue3-lazyload';
+import { Locale } from 'vant';
+import faIR from 'vant/es/locale/lang/fa-IR';
 import App from './App.vue';
 import { router } from './router';
 import { setUnauthorizedHandler } from './api/client';
@@ -23,6 +25,12 @@ import 'ant-design-vue/dist/antd.less';
 import './assets/styles/style.less';
 import 'vant/lib/index.css';
 
+// Vant defaults to zh-CN. Every view in this app is Persian (RTL), so any
+// Vant component rendering its own built-in text (PullRefresh's
+// pulling/loosing labels, etc.) would otherwise show untranslated Chinese —
+// switch to Vant's own fa-IR locale before anything mounts.
+Locale.use('fa-IR', faIR);
+
 const app = createApp(App);
 
 app.use(createPinia());