feat(sms): send class start date, days, and course time

Expose schedule fields on class and invoice templates so SMS can include Jalali start date, weekdays, and hour range.

components/payments/paymentService.js

@@ -9,7 +9,9 @@ const { calculateMeta, escapeRegex, getSearchTerm } = require('../../utils/pagin
 const User = require('../users/userModel');
 const Course = require('../courses/courseModel');
 const Class = require('../classes/classModel');
+const Session = require('../sessions/sessionModel');
 const { sendInvoiceCreatedSms } = require('../../utils/senders/smsMessages');
+const { buildClassScheduleContext } = require('../../utils/classSchedule');
 const logger = require('../../utils/logger');
 
 const getAllPayments = async (query) => {
@@ -79,22 +81,34 @@ const createPayment = async (body, actorId = null) => {
     const user = await User.findById(payment.user).select('name phoneNumber').lean();
     if (user?.phoneNumber) {
       let courseName = '';
+      let schedule = { classStartDate: '', classDays: '', courseTime: '' };
       if (payment.course) {
         const course = await Course.findById(payment.course).select('title').lean();
         if (course?.title) courseName = course.title;
-      } else if (payment.classes && payment.classes.length > 0) {
+      }
+      if (payment.classes && payment.classes.length > 0) {
         const cls = await Class.findById(payment.classes[0]).populate('course', 'title').lean();
-        if (cls?.course?.title) {
-          courseName = cls.course.title;
-        } else if (cls?.name) {
-          courseName = cls.name;
+        if (!courseName) {
+          if (cls?.course?.title) {
+            courseName = cls.course.title;
+          } else if (cls?.name) {
+            courseName = cls.name;
+          }
+        }
+        if (cls) {
+          const sessions = await Session.find({ class: cls._id })
+            .select('day startTime endTime')
+            .sort({ day: 1 })
+            .lean();
+          schedule = buildClassScheduleContext(cls, sessions);
         }
       }
 
       await sendInvoiceCreatedSms(user.phoneNumber, {
         fullName: user.name || '',
         amount: payment.amount,
-        course: courseName || '-'
+        course: courseName || '-',
+        ...schedule
       }, user._id);
     }
   } catch (err) {