Feature: Support both Free-Text and Multiple-Choice question types

tests/migrate_mc.py

@@ -0,0 +1,12 @@
+from app.database import engine
+from sqlalchemy import text
+
+def migrate():
+    with engine.connect() as conn:
+        conn.execute(text("ALTER TABLE questions ADD COLUMN IF NOT EXISTS question_type VARCHAR(20) DEFAULT 'text'"))
+        conn.execute(text("ALTER TABLE questions ADD COLUMN IF NOT EXISTS options TEXT NULL"))
+        conn.commit()
+    print("Migration successful: added question_type and options columns.")
+
+if __name__ == "__main__":
+    migrate()