Tin: full-text search for Postgres

Postgres users can now use TIN, a new full-text search extension that offers fast, reliable indexing with support for Boolean expressions, phrase queries, fuzzy matching, BM25 scoring, and concurrent updates. Unlike existing Postgres text-search options, TIN meets all requirements for production applications including proper transaction visibility, replication, and complex queries across multiple column types. The extension is available immediately as a general release for all Postgres and Neki databases.