Bug: forcing tool use for anthropic

[seanmcguire12]

During extraction, Claude will extract some data, continue chunking, and encounter a chunk with no relevant data to extract. Claude is forced to use the print_extracted_data tool even when there is no new data. This results in a tool use error, and we therefore lose all the previously extracted data.

We should not force Claude to use the print_extracted_data tool on an empty array.