nx_vcodec_gate.nx

nx_vcodec_gate.nx -- V-R5: drives the reusable sovereign video codec MODULE (nx_vcodec: motion + transform + quant + entropy + intra DC prediction) through a talking-head SEQUENCE and MEASURES it against the full-frame baseline the current vroom uses. Native nx_cc->nxasm, no node. No-wave: reports absolute numbers + the inter-prediction win (the same mechanism H.264 uses) + reconstruction error; a literal libvpx/x264 RD head-to-head needs those codecs as a FLAGGED external benchmark (cannot run sovereignly here) -- the exceed claimed here is the measured inter-frame win vs full-frame + footprint/sovereignty/latency. 1) inter-frame bytes << keyframe bytes << raw frame (the motion+transform+entropy win, MEASURED) 2) reconstruction error bounded (lossy but faithful) 3) a STATIC frame costs almost nothing (near-zero uplink between changes) 4) sequence total << "full JPEG every frame" (the current 8fps approach), MEASURED The codec itself now lives in nx_vcodec.nx (DRY: same organ the vroom daemon will import); this gate only builds the test frames + measures. license_tier: ORIGINAL