fix: sanitize metadata keys for database compatibility (fixes #18)#27

s1v4-d wants to merge 1 commit intodocling-project:maindocling-project/docling-langchain:mainfrom

s1v4-d:fix/sanitize-metadata-keys-issue-18s1v4-d/docling-langchain:fix/sanitize-metadata-keys-issue-18Copy head branch name to clipboard