- Add practiceDynamicQuestionPayload helper to build stimulus/response slots
- Extend PracticeQuestionEditorFields with DYNAMIC type, definition picker, and per-slot values (JSON-capable)
- Wire AddNewPracticePage and AddNewLessonPage createQuestion to send question_type_definition_id and dynamic_payload
- Use lesson/practice save status (DRAFT/PUBLISHED) for created questions instead of always PUBLISHED
Co-authored-by: Cursor <cursoragent@cursor.com>
