Dataset structured data fixed

Approved public definitions dataset

This crawlable dataset page includes Schema.org Dataset JSON-LD with a meaningful description, creator, publisher, DataCatalog relationship, and DataDownload distributions. Term pages remain DefinedTerm pages, not Dataset pages. The public snapshot now includes source-labeled multilingual growth, social, workflow automation, and IETF networking terminology with Flesch-Kincaid and Emoji sentiment scoring metadata.