feat(classes): add class days and meeting times to class forms

Let admins set the weekly schedule on the class and show it in lists, details, and session generation.

src/components/classes/ClassSessionsSection.vue

@@ -254,7 +254,10 @@ const props = defineProps({
   classId: { type: [String, Object], required: true },
   courseId: { type: [String, Object], required: true },
   professorId: { type: [String, Object], default: null },
-  defaultSessionCount: { type: Number, default: 12 }
+  defaultSessionCount: { type: Number, default: 12 },
+  days: { type: Array, default: () => [] },
+  startTime: { type: String, default: '' },
+  endTime: { type: String, default: '' }
 });
 
 const { toPersianDigits, toLatinDigits, formatJalali } = usePersianDate();
@@ -339,11 +342,22 @@ const weekdays = [
 const autoForm = reactive({
   sessionCount: props.defaultSessionCount || 12,
   startDate: todayJalali(),
-  startTime: '19:00',
-  endTime: '20:30',
-  selectedDays: [6, 2]
+  startTime: props.startTime || '19:00',
+  endTime: props.endTime || '20:30',
+  selectedDays: props.days?.length ? [...props.days] : [6, 2]
 });
 
+watch(
+  () => [props.days, props.startTime, props.endTime, props.defaultSessionCount],
+  () => {
+    if (props.days?.length) autoForm.selectedDays = [...props.days];
+    if (props.startTime) autoForm.startTime = props.startTime;
+    if (props.endTime) autoForm.endTime = props.endTime;
+    if (props.defaultSessionCount) autoForm.sessionCount = props.defaultSessionCount;
+  },
+  { deep: true }
+);
+
 const toSessionDayIso = (value) => {
   if (!value) return null;
   const latin = toLatinDigits(String(value));