feat: ship host metrics as a first-party in-process plugin

plugins/host-metrics/frontend/temperature-preference.ts

@@ -0,0 +1,12 @@
+import type { TemperatureSensor } from "@/types/stats-widgets";
+
+export function selectTemperatureSensor(
+  sensors: TemperatureSensor[],
+  preferredLabel: string,
+) {
+  return sensors.find((sensor) => sensor.label === preferredLabel) ?? null;
+}
+
+export function temperaturePreferenceKey(hostId: number) {
+  return `termix-host-metrics:${hostId}:temperature-sensor`;
+}