nx_manga_rating_lib.nx

nx_manga_rating_lib.nx -- THE CONTENT RATING DECISION as a shared lib (mangagen MG24 mr_rate_row, MG32 mr_adult_invariant). SINGLE RESPONSIBILITY: this file DECIDES, nx_manga_rating is a thin CLI over it, and nx_manga_rating_gate tests it IN-PROCESS. One decision, one home -- so the CLI and the gate cannot drift into two different answers, which is the whole reason for the split. COMPOSES THE INCUMBENTS AND RE-IMPLEMENTS NEITHER: nx_torrent_access nx_taccess_allow(viewer_level, area) -- the fail-closed VIEWER-LEVEL decision from the operator directive of 2026-06-20. OWNER 3 / FAMILY 1 / ANON 0; areas SFW 0 requires FAMILY, NSFW 1 requires OWNER. This lib NEVER re-decides access: it says which AREA an asset belongs in and hands that to the incumbent. nx_wardrobe_state WS_ADULT_AGE -- the adult threshold already failing closed at construction in the character lane. IMPORTED, never redeclared: the same constant written twice is two constants to every scanner, and an age threshold that can drift between two organs is a defect generator rather than a policy. THE LOAD-BEARING PROPERTY: AN UNRATED ASSET IS TREATED AS GATED, NEVER AS SAFE. An absent rating is not evidence of innocence. Every mapping fails toward the MORE restrictive area, so a missing row costs a family viewer a page it could have seen -- never the reverse.