nx_printer_fw_sim_test.nx

nx_printer_fw_sim_test.nx -- the NEVER-BRICK gate (#26, brand-critical) for the firmware-flash simulator. Proves MECHANICALLY (not by promise) that the A/B flash can never brick the virtual printer, by injecting power loss at EVERY step x EVERY firmware quality and asserting the device ALWAYS boots something. A naive in-place flash is the negative control: it CAN brick, so the gate is proven to DETECT bricking. Unique exit codes: 1 EXHAUSTIVE: A/B flash never bricks (2 sig x 2 boots x 5 power-loss-steps = 20 scenarios) 2-5 specific outcomes (good->new active; mid-write->old; bad-sig->old rejected; bad-boot->rolled back) 10 NEGATIVE CONTROL: naive in-place flash CAN brick (single-bank, power loss mid-write) 11 and the SAFE A/B flash does NOT brick that same single-bank/power-loss case expect_exit: 0 ; license_tier: ORIGINAL ; genealogy_id: project-printer-management-ipp-sclass-2026-06-20