v2.0-beta2: Enhanced HF-Waitress LLM Management Features, Error-Reporting Refinements and Bug Fixes

1. Enhanced HF-Waitress LLM Management: Add new model_ids, search-filter & sort the list of LLMs as well as delete LLM IDs from the HF-Waitress LLM dropdown list
2. HF-Waitress server health-check reporting improvements
3. Various bug fixes: Reference to index_dir removed, document_records SQL-DB correctly created on very first run, removed troublesome test-prints during document-chunking operation

Full Changelog: v2.0-beta1...v2.0-beta2