LLM scraper

[mikesndrs]

Summary of changes Added functionality for using automated LLM scraping and metadata processing

Motivation and context Robustness, metadata parsing, (potential) deduplication, collection management

Checklist

• [x] I have read and followed the CONTRIBUTING guide.
• [x] I confirm that I have the authority necessary to make this contribution on behalf of its copyright owner and agree to license it to the TeSS codebase under the BSD license.

[fbacall]

Will try and review this next week. Had a busy week due to various projects wrapping up at the end of June