nx_vessel_io_test.nx

nx_vessel_io_test.nx -- smoke for nx_vessel_io (H1, hardware-in-the-loop). Proves the real control software regulates against IMPERFECT hardware: - sensor quantizes to the ADC resolution (1) - PWM actuator is on below the duty, off above (2-3) - sensor LAG: a laggy probe reads below true during a ramp (4-5) - HIL: the R1 controller, reading a NOISY+LAGGY sensor, drives the H0 physics twin into the setpoint neighborhood (6-7) and NEVER reaches culture-kill (8) -- the control design validated pre-build Exit code = failed assertion number; 0 = all pass.