Make NetworkAlertService a user-less service

ee/app/services/alert_management/network_alert_service.rb

@@ -2,12 +2,17 @@
 
 module AlertManagement
   # Create alerts coming K8 through gitlab-agent
-  class NetworkAlertService < BaseService
+  class NetworkAlertService
     include Gitlab::Utils::StrongMemoize
     include ::IncidentManagement::Settings
 
     MONITORING_TOOL = Gitlab::AlertManagement::Payload::MONITORING_TOOLS.fetch(:cilium)
 
+    def initialize(project, payload)
+      @project = project
+      @payload = payload
+    end
+
     # Users of this service need to check the agent token before calling `execute`.
     # https://gitlab.com/gitlab-org/gitlab/-/issues/292707 will handle token within the service.
     def execute
@@ -24,8 +29,10 @@ module AlertManagement
 
     private
 
+    attr_reader :project, :payload
+
     def valid_payload_size?
-      Gitlab::Utils::DeepSize.new(params).valid?
+      Gitlab::Utils::DeepSize.new(payload).valid?
     end
 
     def process_request
@@ -78,7 +85,7 @@ module AlertManagement
       strong_memoize(:incoming_payload) do
         Gitlab::AlertManagement::Payload.parse(
           project,
-          params,
+          payload,
           monitoring_tool: MONITORING_TOOL
         )
       end

ee/lib/ee/api/internal/kubernetes.rb

@@ -25,7 +25,7 @@ module EE
 
                   forbidden! unless project.feature_available?(:cilium_alerts)
 
-                  result = ::AlertManagement::NetworkAlertService.new(agent.project, nil, params[:alert]).execute
+                  result = ::AlertManagement::NetworkAlertService.new(agent.project, params[:alert]).execute
 
                   status result.http_status
                 end

ee/spec/services/alert_management/network_alert_service_spec.rb

@@ -7,7 +7,7 @@ RSpec.describe AlertManagement::NetworkAlertService do
   let_it_be(:environment) { create(:environment, project: project) }
 
   describe '#execute' do
-    let(:service) { described_class.new(project, nil, payload) }
+    let(:service) { described_class.new(project, payload) }
     let(:tool) { Gitlab::AlertManagement::Payload::MONITORING_TOOLS[:cilium] }
     let(:starts_at) { Time.current.change(usec: 0) }
     let(:ended_at) { nil }