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Jason
df0b2fd469
Cooling-fan trip in main.cpp's periodic temperature block was a 25 C dev stub that latched the fan ON at room temperature on every boot. Replaced with production thermal control: ON at 70 C, OFF at 60 C. The 10 C dead-band prevents relay/fan chatter near the threshold; the 70 C ON point sits below the 75 C SAFE-mode gate in checkSystemHealth() so the fan engages before the system shuts down. Driven from the existing `temperature` global (max of 8 sensors, populated just above by the GAP-3 fix) instead of re-OR'ing the eight Temperature_N variables — single source of truth, and the diag now prints the actual peak temperature on each transition. Added test_mcu_a1_cooling_hysteresis (9 cases) covering cold-start, upward crossing, dead-band hold, downward crossing, and a regression guard at 30 C that would have engaged the fan under the old stub. MCU regression now 77/77.