fix: correct KubernetesClient import to K8sClient in Celery tasks

app/workers/celery_worker.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+"""
+Celery worker startup script.
+"""
+import os
+import sys
+from celery import Celery
+
+# Add the app directory to Python path
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from app.celery_app import celery_app
+
+if __name__ == '__main__':
+    # Start Celery worker
+    celery_app.worker_main([
+        'worker',
+        '--loglevel=info',
+        '--concurrency=4',
+        '--queues=cluster_analysis,prometheus,recommendations',
+        '--hostname=worker@%h'
+    ])