Filter out tags listed in a tag dictionary (danbooru CSV) so that only
unknown tags remain in the report, surfacing typos such as missing commas
and missing spaces in prompts.
The dictionary is given as a file path in a single-line widget, and the
route was switched from GET to POST because a full dictionary exceeds the
request line limit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
