This commit modifies the audio download process in `whatsapp-router/src/webhook.ts` to align with the updated nucleo-whatsapp API.
Previously, audio files were downloaded using a direct GET request to the file URL. This has been changed to a POST request to the `/downloadFileWithCredentials` endpoint provided by nucleo-whatsapp.
Key changes:
- Audio files are now downloaded by POSTing to `[OPEN_WA_URL]/downloadFileWithCredentials` with the audio file's URL in the request body.
- The `/downloadFileWithCredentials` endpoint returns a base64 encoded string directly, so the explicit base64 conversion step after downloading has been removed.
This change ensures compatibility with the correct API for fetching message media.
This commit removes the Jest unit tests, configuration, and related dependencies that were added for the WhatsApp audio transcription feature.
This is done as per your request due to potential issues with the test execution environment.
The core functionality for audio transcription remains.
