nx_research_engine_gate.nx

nx_research_engine_gate.nx -- s-class gate for the shared research engine (nx_research_engine). Proves the EXTRACT (rf_strip) and the GZIP-guard (rf_is_gzip) DETERMINISTICALLY, no network -- the functionality the engine guarantees, measured + repeatable. This is the functionality the old copy-pasted fetchers carried, now CENTRALIZED into one DRY engine and tested ONCE (rule 15). No functionality reduced; gzip-guard + extract proven. (helpers carry a ge_ prefix -- the engine pulls in the TLS stack, so generic names like streq/slen/chk collide.) criteria: 1 rf_strip drops tags, keeps text: "<p>hi <b>there</b></p>" -> "hi there " 2 rf_strip SUPPRESSES <script> body: "<script>var x=1;</script>OK" -> "OK" 3 rf_strip collapses whitespace: "a b" -> "a b" 4 rf_strip handles <style> + blocks: "<div>A</div><style>x{}</style><p>B</p>" -> "A B " 5 rf_is_gzip: 0x1f 0x8b body detected (would skip), plain text NOT (would bank) expect_exit: 0 license_tier: ORIGINAL