Fix using nonexistent variable

app/services/user_service.py

@@ -85,7 +85,7 @@ class UserService:
 			with db_connection.cursor(dictionary=True) as cursor:
 
 				cursor.execute("select id, password from user where username = %s", (username,))
-				result = db_cursor.fetchone()
+				result = cursor.fetchone()
 
 				user_id = result['id']
 				password_hash = result['password']

requirements.txt

@@ -5,3 +5,5 @@ python-dotenv==1.0.1
 Flask-JWT-Extended==4.5.3
 PyJWT==2.8.0
 Flask-Mail==0.9.1
+redis==4.5.4
+bcrypt==4.1.2