nx_vcodec_gop_vm_gate.nx

nx_vcodec_gop_vm_gate.nx -- SOVEREIGN VM verification of a full GOP (group-of-pictures): the shipped nx_vcodec.wasm coding a REAL multi-frame video sequence (1 keyframe + 7 inter frames with a moving object), prev-recon chained between frames exactly as the browser does. The existing inter gate proves keyframe + ONE P-frame; this proves the chain stays byte-exact over a WHOLE sequence -- i.e. NO temporal drift accumulates, and the per-op-alloc leak fix holds over the long op-sequence a real video drives. Proven via the ecosystem's OWN wasm VM vs the native codec authority, every frame: - every frame's recon VM == native (byte-exact -- drift-free over the GOP) <- the new coverage - every frame's bitcount VM == native (compiler faithful on the cost path) - the GOP costs FAR less than coding every frame as a keyframe (temporal compression real) - NEG-CONTROL: the byte-exact comparator detects a real difference (moved object) -> has teeth No deploy, no live-client touch -- pure headless de-risk. expect_exit: 0 license_tier: ORIGINAL