feat(task): with_statement_timeout helper for long running collection or process query

spec/tasks/maintenance/concerns/statements_helpers_concern_spec.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Maintenance::StatementsHelpersConcern do
+  let(:dummy_class) do
+    Class.new do
+      include Maintenance::StatementsHelpersConcern
+    end
+  end
+
+  let(:instance) { dummy_class.new }
+
+  describe '#with_statement_timeout' do
+    it 'applies the statement timeout and raises an error for long-running queries' do
+      expect {
+        instance.with_statement_timeout('1ms') do
+          # Cette requête devrait prendre plus de 1ms et donc déclencher un timeout
+          ActiveRecord::Base.connection.execute("SELECT pg_sleep(1)")
+        end
+      }.to raise_error(ActiveRecord::StatementInvalid, /canceling statement due to statement timeout/i)
+    end
+
+    it 'allows queries to complete within the timeout and returns the result' do
+      result = instance.with_statement_timeout('1s') do
+        ActiveRecord::Base.connection.execute("SELECT 42 AS answer").first['answer']
+      end
+      expect(result).to eq 42
+    end
+  end
+end