NVMe 150F, DIMM 140F, PCH 160F triggers on the new storage/mem/chipset
sensors (104F general threshold retained for air/CPU); UPS runtime-low
alert (<10 min while not Online) guards the #455 shutdown window.
https://projects.knownelement.com/issues/344
notify.send_message rejects extra data['data'] (old mobile-app push
syntax) — UPS battery low, UPS comm lost, and high-temperature alerts
all errored on every fire. Blocks removed; notifications send plain.
https://projects.knownelement.com/issues/344