feat: order revision, rial wage from variant, product tags; drop user-app-v2

Admin order edit with category chips and timeline; customer checkout charges variant rialWage; product tags; retire the unused user-app-v2 tree.

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

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

@@ -98,7 +98,13 @@ export class OrdersService {
         if (quotes && !quote) throw new NotFoundException(`Variant ${variant.id} not found`);
         const wagePercent = new Prisma.Decimal(quote ? quote.wagePercentSnapshot : item.wagePercent);
         const discountPercent = new Prisma.Decimal(quote ? quote.discountPercentSnapshot : (item.discountPercent ?? 0));
-        if (quote) this.warnOnPriceMismatch(variant.id, item, wagePercent, discountPercent);
+        // Customer path: flat Rial comes from the variant (اجرت ریالی), never
+        // from the request body — same MON-08 posture as wage/discount. Operator
+        // path keeps the panel-entered figure.
+        const flatRialCharge = quotes
+          ? new Prisma.Decimal(variant.rialWage ?? 0)
+          : new Prisma.Decimal(item.flatRialCharge ?? 0);
+        if (quote) this.warnOnPriceMismatch(variant.id, item, wagePercent, discountPercent, flatRialCharge);
         const netPercent = wagePercent.sub(discountPercent);
         const computedWeightGrams = rashWeight.mul(netPercent.div(100).add(1));
 
@@ -109,8 +115,7 @@ export class OrdersService {
           wagePercentSnapshot: wagePercent,
           discountPercentSnapshot: discountPercent,
           computedWeightGrams,
-          // Legacy app: rial_pay is always 0 (cart.vue); only an operator sets one.
-          flatRialCharge: new Prisma.Decimal(quotes ? 0 : (item.flatRialCharge ?? 0)),
+          flatRialCharge,
         };
       }),
     );
@@ -216,15 +221,15 @@ export class OrdersService {
    * mismatch means a stale app version, a promotion that expired between the
    * product page and checkout, or a tampered request.
    *
-   * `flatRialCharge` is included because the app hardcodes 0 (cart.vue:179) and
-   * only an operator ever sets one — anything non-zero from a customer is a
-   * client that should not be sending it.
+   * Flat Rial is the variant's `rialWage` (اجرت ریالی); the client's number is
+   * ignored and logged when it differs.
    */
   private warnOnPriceMismatch(
     variantId: string,
     sent: CreateOrderItemInputDto,
     wagePercent: Prisma.Decimal,
     discountPercent: Prisma.Decimal,
+    flatRialCharge: Prisma.Decimal,
   ) {
     const differs: string[] = [];
     if (!wagePercent.eq(sent.wagePercent)) {
@@ -233,8 +238,8 @@ export class OrdersService {
     if (!discountPercent.eq(sent.discountPercent ?? 0)) {
       differs.push(`discountPercent sent=${sent.discountPercent ?? 0} used=${discountPercent.toString()}`);
     }
-    if ((sent.flatRialCharge ?? 0) !== 0) {
-      differs.push(`flatRialCharge sent=${sent.flatRialCharge} used=0`);
+    if (!flatRialCharge.eq(sent.flatRialCharge ?? 0)) {
+      differs.push(`flatRialCharge sent=${sent.flatRialCharge ?? 0} used=${flatRialCharge.toString()}`);
     }
     if (differs.length) {
       this.logger.warn(