fix: format prices in notifications, change partial payment label, and add session holding notify API

jobs/paymentReminderJob.js

@@ -7,7 +7,7 @@ const Course = require('../components/courses/courseModel');
 const eventEmitter = require('../events/eventEmitter');
 const EVENT_NAMES = require('../constants/eventNames');
 const logger = require('../utils/logger');
-const { getPayableAmount } = require('../utils/paymentAmount');
+const { getPayableAmount, formatPrice } = require('../utils/paymentAmount');
 const { notifyAction } = require('../utils/actionNotify');
 const { sendPaymentReminderSms } = require('../utils/senders/smsMessages');
 const { resolveNotifyFlags } = require('../utils/notifyResolver');
@@ -30,6 +30,7 @@ const notifyPaymentReminder = async (payment, user) => {
   }
 
   const amountDue = getPayableAmount(payment) - (payment.paidAmount || 0);
+  const formattedAmountDue = formatPrice(amountDue);
 
   await notifyAction({
     actionKey: 'paymentReminder',
@@ -37,7 +38,7 @@ const notifyPaymentReminder = async (payment, user) => {
     phoneNumber: user.phoneNumber,
     email: user.email,
     subject: 'یادآوری سررسید پرداخت',
-    body: `یادآوری: مبلغ ${amountDue} تومان تا ${formatDueDate(payment.dueDate)} سررسید دارد. کد صورتحساب: ${payment.uniqueCode || ''}`,
+    body: `یادآوری: مبلغ ${formattedAmountDue} تومان تا ${formatDueDate(payment.dueDate)} سررسید دارد. کد صورتحساب: ${payment.uniqueCode || ''}`,
     smsHandler: () => sendPaymentReminderSms(user.phoneNumber, {
       fullName: user.name || '',
       amount: amountDue,