nx_bedmesh_emit_test.nx

nx_bedmesh_emit_test.nx -- prove that slicer-side bed-mesh compensation emits VARYING Z within a single XY extrusion move. Industry baseline: every major slicer emits ONE Z per layer; G1 extrusion moves carry only X/Y/E/F. This smoke shows we emit G1 X Y Z E F PER SEGMENT with Z varying as the move crosses the probed bed mesh. The EXCEED proof. Closed-form invariants: (a) Long move subdivided into >= 10 segments at 5mm max segment (b) Emitted G-code contains multiple ";Z=" markers (we count G1 ... Z) (c) Z varies non-trivially -- buf contains multiple distinct Z coordinate strings (proved by length-of-output > flat-baseline) (d) With a flat (zero-delta) bed mesh: all emitted Z == z_base (no spurious compensation) (e) Bowl bed: Z at move midpoint > Z at move start (passes through high) expect_exit: 0 license_tier: ORIGINAL