13,689 new quiz questions in 160 practice islands (grades 3-12), Question.figure, replay rotates the quiz, LaTeX removed from lesson/question text

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

content/question_io.py

@@ -24,6 +24,8 @@ import json
 
 from django.db import transaction
 
+from rag.services import diagram as diagram_spec
+
 from .models import Choice, Lesson, Question
 
 VALID_TYPES = {value for value, _ in Question.TYPE_CHOICES}
@@ -63,12 +65,20 @@ def _validate_row(row, index: int) -> dict:
     if not isinstance(correct, int) or not (0 <= correct < len(choices)):
         raise ImportError_(f'{where}: correct باید شماره‌ی یکی از گزینه‌ها باشد (از صفر).')
 
+    figure = row.get('figure')
+    if figure is not None:
+        # شکلِ نامعتبر بی‌صدا حذف نمی‌شود (برخلافِ دستیار): فایلِ محتوا باید خراب‌بودنش را نشان دهد.
+        figure = diagram_spec.validate(figure) if isinstance(figure, dict) else None
+        if figure is None:
+            raise ImportError_(f'{where}: «figure» شکلِ معتبر نیست (قالبِ rag.services.diagram).')
+
     return {
         'lesson_id': lesson_id,
         'prompt': prompt,
         'type': qtype,
         'choices': choices,
         'correct': correct,
+        'figure': figure,
     }
 
 
@@ -135,6 +145,7 @@ def import_questions(
             continue
         question = Question.objects.create(
             lesson_id=row['lesson_id'], type=row['type'], prompt=row['prompt'],
+            figure=row.get('figure'),
         )
         Choice.objects.bulk_create([
             Choice(question=question, value=value, is_correct=(i == row['correct']))
@@ -157,13 +168,16 @@ def export_questions(queryset) -> list[dict]:
     for question in queryset.prefetch_related('choices').select_related('lesson'):
         choices = list(question.choices.all())
         correct = next((i for i, c in enumerate(choices) if c.is_correct), 0)
-        out.append({
+        row = {
             'lessonId': question.lesson_id,
             'prompt': question.prompt,
             'type': question.type,
             'choices': [c.value for c in choices],
             'correct': correct,
-        })
+        }
+        if question.figure:
+            row['figure'] = question.figure
+        out.append(row)
     return out
 
 
@@ -189,13 +203,16 @@ def export_questions_by_path(queryset) -> list[dict]:
         correct = next((i for i, c in enumerate(choices) if c.is_correct), 0)
         lesson = question.lesson
         node = lesson.node
-        out.append({
+        row = {
             'path': [node.unit.grade.title, node.unit.title, node.title, lesson.title],
             'prompt': question.prompt,
             'type': question.type,
             'choices': [c.value for c in choices],
             'correct': correct,
-        })
+        }
+        if question.figure:
+            row['figure'] = question.figure
+        out.append(row)
     return out