feat(core): Add update checking and version logging across startup components

ts/snmp/manager.ts

@@ -15,6 +15,8 @@ const execAsync = promisify(exec);
 export class NupstSnmp {
   // Active OID set
   private activeOIDs: OIDSet;
+  // Reference to the parent Nupst instance
+  private nupst: any; // Type 'any' to avoid circular dependency
 
   // Default SNMP configuration
   private readonly DEFAULT_CONFIG: SnmpConfig = {
@@ -43,6 +45,21 @@ export class NupstSnmp {
     this.activeOIDs = UpsOidSets.getOidSet('cyberpower');
   }
   
+  /**
+   * Set reference to the main Nupst instance
+   * @param nupst Reference to the main Nupst instance
+   */
+  public setNupst(nupst: any): void {
+    this.nupst = nupst;
+  }
+  
+  /**
+   * Get reference to the main Nupst instance
+   */
+  public getNupst(): any {
+    return this.nupst;
+  }
+  
   /**
    * Set active OID set based on UPS model
    * @param config SNMP configuration