fix: RemoveStaleRedisKeys service (#10562)

Fixes issues with RemoveStaleRedisKeys service

Co-authored-by: Sojan <sojan@pepalo.com>

spec/services/internal/remove_stale_redis_keys_service_spec.rb

@@ -0,0 +1,18 @@
+require 'rails_helper'
+
+RSpec.describe Internal::RemoveStaleRedisKeysService, type: :service do
+  let(:account_id) { 1 }
+  let(:service) { described_class.new(account_id: account_id) }
+
+  describe '#perform' do
+    it 'removes stale Redis keys for the specified account' do
+      presence_key = OnlineStatusTracker.presence_key(account_id, 'Contact')
+
+      # Mock Redis calls
+      expect(Redis::Alfred).to receive(:zremrangebyscore)
+        .with(presence_key, '-inf', anything)
+
+      service.perform
+    end
+  end
+end