nx_wiki_license.nx

nx_wiki_license.nx -- PER-SOURCE LICENSE LAYER for the no-link-rot archive. THE EXCEED OVER WIKIPEDIA (anti-pushout, done RIGHT): We render a cited supporting source INLINE in the wiki -- but ONLY when the license permits us to host/redistribute it. This module is the gate that decides hostable vs link-only. Getting this WRONG is the one unacceptable failure: inlining content we are not licensed to host. So the rule is sealed here, data-driven (per-source tag in the archive store), and the cite-render asks THIS module -- never guesses. LICENSE CLASSES (sealed enum; values are stable on-disk so a stored tag keeps meaning forever -- additive-only, never renumber): 0 UNKNOWN not hostable (we don't know -> we don't inline) 1 PUBLIC_DOMAIN hostable, no attribution required 2 CC0 hostable, no attribution required (PD-equivalent dedication) 3 CC_BY hostable, attribution required 4 CC_BY_SA hostable, attribution required (share-alike) 5 CC_BY_NC hostable, attribution required (non-commercial) 6 CC_BY_ND hostable, attribution required (no-derivatives -- verbatim redistribution, which inline display IS, is permitted) 7 CC_BY_NC_SA hostable, attribution required 8 PROPRIETARY NOT hostable (all-rights-reserved -> link only) HOSTABLE = "the license permits us to redistribute / display the verbatim source bytes to a reader". Public-domain + CC0 + every Creative-Commons variant grant redistribution (the NC/ND/SA conditions constrain commercial use / derivatives / relicensing, NOT verbatim display, which is exactly what an inline read is). PROPRIETARY and UNKNOWN are the deny set. STORE: the per-source tag lives in the SAME content-addressed seg_store the archive uses (prefix WAR_PREFIX from nx_wiki_archive.nx), under key wikilic:<cid> -> one byte = the license class (0..8) keyed by the SOURCE's CID so the license travels with the content address. Absent tag => UNKNOWN (fail-closed: an un-tagged source is never inlined). IMPORTS: nx_wiki_archive.nx (for WAR_PREFIX + the seg_store API it re-exports transitively). NishiLang's resolver de-dups imports by module identity (the archive itself imports nx_seg_store + nx_canon_cid; importing the archive here splices each ONCE), so no double-import nxasm-rc6 landmine. Pure NishiLang, NO SQL, NO .sh/.py/.js, no new .tsv/.conf. license_tier: ORIGINAL