nx_alu_emit_text_test.nx

nx_alu_emit_text_test.nx -- SOVEREIGN gate (NishiLang verdict, no shell/grep): drives the SHIPPING .nxgate emitter (nx_emit_alu_gates) and SELF-VERIFIES that the emitted text carries the proven divider. The same builder the MEM verifier proved at 21/7 runs here with a TEXT sink -> one source, two sinks. A stub ALU emits ~28 MUX / ~2 SUB / ~1 LTU cells; the divider-wired ALU emits 4x64 of each. This test scans its OWN emitted buffer (no grep) and exits 0 IFF the divider's signature is present + the .nxgate is structurally valid. Verdict (exit code): 0 PROVEN; 1 MUX low; 2 SUB low; 3 LTU low; 4 no header; 5 no .END; 20 emit failed.