nx_h264_block_e2e_gate.nx

nx_h264_block_e2e_gate.nx -- SINGLE 4x4 BLOCK end-to-end micro-decode. A real coefficient block pushed through the ENTIRE sovereign pipeline: scan coeff[0]=5 --CAVLC encode--> bits --CAVLC decode--> scan' (round-trip) --inverse zigzag--> raster --dequant(QP0)--> coeffs --IDCT--> residual --(+ intra DC pred)--> --clip--> reconstructed pixels. Hand-computed expected values (every step): decode scan[0]=5 ; raster[0]=5 ; dequant DC = (5*160+8)>>4 = 50 ; IDCT(DC=50) -> residual 1 everywhere ; intra DC pred(top sum100,left sum260)=45 ; pixel = clip(45+1) = 46 (all 16). Every value PRINTED. stdout + knowledge/status/h264_block_e2e_gate.log. Exit 0/1. Sovereign: nx_syscalls + bits + bitwriter + residual + zigzag + dequant + idct + intra. license_tier: ORIGINAL