fix: pass amount to ZarinPal VerifyPaymentAsync — fix verify failure (amount=0 bug)

- PackageService.CustomerVerifyPackagePurchase: look up PaymentTransaction.Amount and pass to 3-arg overload
- TransactionsService.CustomerPaymentVerification: same fix
- VerifyDiscountWalletChargeCommandHandler: look up amount from PaymentTransaction
- VerifyPackagePurchaseCommandHandler: fix copy-paste bug (Authority as verificationToken) + add amount
- IPaymentGatewayService: throw NotImplementedException in default 3-arg impl to prevent silent amount=0
- MockPaymentGatewayService & DayaPaymentService: add 3-arg overload for compatibility

Root cause: ZarinPal requires the exact amount in verify request.
The 2-arg overload was sending amount=0 which caused Code=-1 (تأیید تراکنش ناموفق).

src/CMSMicroservice.Application/PackageCQ/Commands/VerifyPackagePurchase/VerifyPackagePurchaseCommandHandler.cs

@@ -58,10 +58,18 @@ public class VerifyPackagePurchaseCommandHandler
                 return true;
             }
 
-            // 3. Verify با درگاه بانکی
+            // واکشی PaymentTransaction برای گرفتن مبلغ (تومان) جهت verify
+            var paymentTx = await _context.PaymentTransactions
+                .FirstOrDefaultAsync(pt => pt.Authority == request.Authority, cancellationToken);
+            
+            var amountInToman = (decimal)(paymentTx?.Amount ?? order.Amount);
+
+            // 3. Verify با درگاه بانکی (مبلغ به تومان — تبدیل به ریال در ZarinPalService)
             var verifyResult = await _paymentGateway.VerifyPaymentAsync(
                 request.Authority,
-                request.Authority  // verificationToken - در بعضی درگاه‌ها همان Authority است
+                "OK",  // verificationToken — Status از درگاه
+                amountInToman,
+                cancellationToken
             );
 
             if (!verifyResult.IsSuccess)