nx_tier_ladder_gate.nx

nx_tier_ladder_gate.nx -- GP3 / GE45 REFEREE: the render-door ladder is DATA, the native walk over that data is pinned by a truth table, and the JS twin the pages carry is pinned to the same ids, limits and reason vocabulary -- so the page, the conf and the ruler cannot disagree. SUBJECTS: (1) the LIVE knowledge/tier_ladder.conf as parsed by nx_tier_ladder_lib (in-process, no fork), including each door's draws word (S0, 2026-09-04: the WebGPU pass declares world -- NO CAST -- as data, so a WebGPU frame missing every character is a fact this gate, the HUD and the referee can all state); (2) runtime-assembled fixture confs that MUST be refused (the neg-controls: a ladder without a fallback, an order that regresses, a field carrying a double quote, an unknown state, a fallback that is not last, an unknown draws word, a door row without the draws field); (3) the emitted JS twin (tl_js over the live table); (4) the world emitter source, which must COMPOSE tl_emit() -- a page emitter that draws a frame without the ladder is the unexplained-frame defect this rung exists to retire. WHY A TRUTH TABLE AND NOT "IT PICKED SOMETHING": the walk has four inputs (WebGPU capability, WebGL2 capability, the lever of every door, the force-lever of the fallback) and the defect it must never have is a walk that reads a levered door as default or a capability-absent door as failed. Each row below names the inputs and the ONE door (and reason word) they must produce on the shipping conf. nx_tier_ladder_gate (no args; the emitter source is probed at buildroot/runtime then runtime) license_tier: ORIGINAL No hw writes (Rule 26).