feat(cli,snmp): fix APC runtime unit defaults and add interactive action editing

ts/snmp/runtime-units.ts

@@ -0,0 +1,50 @@
+import type { ISnmpConfig, TRuntimeUnit, TUpsModel } from './types.ts';
+
+/**
+ * Return the runtime unit that matches the bundled OID set for a UPS model.
+ */
+export function getDefaultRuntimeUnitForUpsModel(
+  upsModel: TUpsModel | undefined,
+  batteryRuntime?: number,
+): TRuntimeUnit {
+  switch (upsModel) {
+    case 'cyberpower':
+    case 'apc':
+      return 'ticks';
+    case 'eaton':
+      return 'seconds';
+    case 'custom':
+    case 'tripplite':
+    case 'liebert':
+    case undefined:
+      if (batteryRuntime !== undefined && batteryRuntime > 10000) {
+        return 'ticks';
+      }
+      return 'minutes';
+  }
+}
+
+/**
+ * Convert an SNMP runtime value to minutes using explicit config first, then model defaults.
+ */
+export function convertRuntimeValueToMinutes(
+  config: Pick<ISnmpConfig, 'runtimeUnit' | 'upsModel'>,
+  batteryRuntime: number,
+): number {
+  if (batteryRuntime <= 0) {
+    return batteryRuntime;
+  }
+
+  const runtimeUnit = config.runtimeUnit ||
+    getDefaultRuntimeUnitForUpsModel(config.upsModel, batteryRuntime);
+
+  if (runtimeUnit === 'seconds') {
+    return Math.floor(batteryRuntime / 60);
+  }
+
+  if (runtimeUnit === 'ticks') {
+    return Math.floor(batteryRuntime / 6000);
+  }
+
+  return batteryRuntime;
+}