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/api/src/modules/orders/orders.service.ts

@@ -3,6 +3,7 @@ import { OrderChannel, OrderStatus, Prisma } from '@prisma/client';
 import { PrismaService } from '../../prisma/prisma.service';
 import { CatalogService } from '../catalog/catalog.service';
 import { LedgerService } from '../accounting/ledger.service';
+import { AccountingHooksService } from '../accounting-sync/accounting-hooks.service';
 import { CreateOrderDto } from './dto/create-order.dto';
 
 interface ComputedItem {
@@ -23,6 +24,7 @@ export class OrdersService {
     private readonly prisma: PrismaService,
     private readonly catalog: CatalogService,
     private readonly ledger: LedgerService,
+    private readonly accounting: AccountingHooksService,
   ) {}
 
   /**
@@ -121,6 +123,9 @@ export class OrdersService {
         include: { items: true, statusEvents: true },
       });
 
+      // D27 — the document rule may say «at order placement».
+      await this.accounting.orderStatusReached(tx, order.id, initialStatus);
+
       return order;
     });
   }
@@ -151,6 +156,14 @@ export class OrdersService {
         await this.ledger.postOrderDebt(orderId, tx);
       }
 
+      // D27 — the accounting document (پیش‌فاکتور) follows the owner's rule on
+      // which status posts it, queued in this same transaction.
+      if (newStatus === OrderStatus.CANCELLED && order.status !== OrderStatus.CANCELLED) {
+        await this.accounting.orderCancelled(tx, orderId);
+      } else if (newStatus !== order.status) {
+        await this.accounting.orderStatusReached(tx, orderId, newStatus);
+      }
+
       return updated;
     });
   }