-`subsection_key` must match an existing subsection entry from the task catalog.
- The socratic subsection list in the UI is built from `backend/sources/tasks/_subsection_map.json` and the `subsections` arrays in the task files.
- If the link is invalid, the frontend falls back to `/select-socratic`.
- The socratic dialog is not locked by deep link, so users can still switch subsections afterwards.
To make it accessible over the network.
Add the frontend- and backend-adress in the `backend/.env`-file in the frontend- and backend-folder. Use the following command to run the front- and backend.