Get Site Summary

Retrieve the site summary for a specific task.

The status reflects whether the summary is up-to-date:

• SUCCESS: Summary exists and includes all available transcripts
• PENDING: No summary yet OR new transcripts need to be processed
• PROCESSING: Summary is currently being generated/updated
• ERROR: An error occurred

Returns:

• status: Current status of the summary
• site_summary: The summary text (even if outdated, with status=PENDING)
• message: Additional information about the status
• has_new_transcripts: Whether there are unprocessed transcripts

Caching strategy:

• Cache site summary response with 60 second TTL
• Cache is invalidated when summary is generated/updated (via Celery tasks)