feat(snmp): Enhance SNMP metrics with output load, power, voltage, and current readings

ts/snmp/types.ts

@@ -14,6 +14,14 @@ export interface IUpsStatus {
   batteryCapacity: number;
   /** Remaining runtime in minutes */
   batteryRuntime: number;
+  /** Output load percentage (0-100) */
+  outputLoad: number;
+  /** Output power in watts */
+  outputPower: number;
+  /** Output voltage in volts */
+  outputVoltage: number;
+  /** Output current in amps */
+  outputCurrent: number;
   /** Raw values from SNMP responses */
   raw: Record<string, any>;
 }
@@ -28,6 +36,14 @@ export interface IOidSet {
   BATTERY_CAPACITY: string;
   /** OID for battery runtime */
   BATTERY_RUNTIME: string;
+  /** OID for output load percentage */
+  OUTPUT_LOAD: string;
+  /** OID for output power in watts */
+  OUTPUT_POWER: string;
+  /** OID for output voltage */
+  OUTPUT_VOLTAGE: string;
+  /** OID for output current */
+  OUTPUT_CURRENT: string;
   /** Power status value mappings */
   POWER_STATUS_VALUES?: {
     /** SNMP value that indicates UPS is online (on AC power) */