nx_reader_sovereignty_gate.nx

nx_reader_sovereignty_gate.nx -- mechanical proof the reader last-mile (reader.html) has ZERO third-party bleed = the "hardware rung up" guarantee for the browser surface. The reader is the sanctioned last-mile HTML render; this gate enforces, by construction, that it loads NOTHING from a 3rd party (no external <script src>, no CDN, no external stylesheet/font, no <iframe>, no @import, no offsite src/href). All logic is inline + sovereign; the only fetches are same-origin relative (/library/api/...). Standing regression guard so no future edit slips a CDN dependency in. (Note: full compliance also wants reader.html EMITTED by a Nishi organ -- R-EMIT, the open rung; this gate proves dependency-freeness, the substance.) expect_exit: 0