every_rq_block_must_parse

Katz 0.057

Every language- " rq " block in showcase content files must parse against the langium grammar.
Prefer enforcement via a build step that runs the real parser over content.
Site-wide ( landing + showcases ): accurate_rq_snippets_must_parse.
aligns with phase_1_parse_gate

Interactive page: every_rq_block_must_parse