nx_docpub_render.nx

nx_docpub_render.nx -- the DOC RENDER CORE for nx_docpub_site / nx_docpub_tree: turn a .nx source file into a zero-JS HTML reference page, plus the byte/file/escape helpers both publishers need. WHY IT IS A SEPARATE MODULE. Both publishers imported nx_docgen_lib.nx expecting these ten symbols; that library is a DIFFERENT organ -- legal clause templating (dg_clause_put / dg_tmpl_put / dg_merge / dg_assemble) -- and never carried them. Verified genuinely UNWRITTEN before writing: `func dg_render` has ZERO matches across all 19,985 files INCLUDING every .dupe-reconciled / .bak-* artifact, so this is new code and not a re-implementation of something a dedupe deleted (the mistake made on nx_bom earlier). The dg_ prefix is heavily overloaded -- ~30 unrelated organs define private dg_puts/dg_cat/dg_num -- so these live in their own file rather than being bolted onto any of them. ZERO-JS BY CONSTRUCTION: nothing here ever emits a <script tag, and every byte taken from source goes through dg_catb_esc. nx_docpub_tree T3 asserts exactly that (page contains `<div class=fn ` and does NOT contain `<script`), so the guarantee is checked, not promised. license_tier: ORIGINAL No hw writes (Rule 26).