Apply collapsible answer formatting to Medium and Advanced assessments, update n8n workflow schema, fix Basic assessment formatting errors, and validate all components

add_marks_medium.py

@@ -0,0 +1,35 @@
+import re
+
+correct_indices = [2,3,2,2,1,3,3,2,2,1,3,2,2,2,3,2,2,2,2,1,1,2,2,2,1,2,2,2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2]
+
+with open('questions/markdown/Medium_assesment.md', 'r', encoding='utf-8') as f:
+    content = f.read()
+
+questions = re.split(r'(?=### \d+\.)', content)
+
+new_questions = []
+
+q_num = 0
+
+for q in questions:
+    if not q.strip():
+        continue
+    lines = q.split('\n')
+    options = []
+    in_options = False
+    for i, line in enumerate(lines):
+        if line.startswith('- '):
+            if not in_options:
+                in_options = True
+            options.append(i)
+    if q_num < len(correct_indices):
+        correct_idx = correct_indices[q_num] - 1  # 0-based
+        if correct_idx < len(options):
+            lines[options[correct_idx]] += ' ✅'
+    new_questions.append('\n'.join(lines))
+    q_num += 1
+
+new_content = ''.join(new_questions)
+
+with open('questions/markdown/Medium_assesment.md', 'w', encoding='utf-8') as f:
+    f.write(new_content)