feat(tasks): use our task template, with example doc

config/initializers/maintenance_tasks.rb

@@ -6,6 +6,7 @@ Rails.application.config.after_initialize do
 
     class MaintenanceTasks::TaskGenerator
       alias_method :original_assign_names!, :assign_names!
+      source_paths << Rails.root.join("lib/templates/maintenance_tasks")
 
       private
 

lib/templates/maintenance_tasks/task.rb.tt

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module <%= tasks_module %>
+<% module_namespacing do -%>
+  class <%= class_name %>Task < MaintenanceTasks::Task
+    # Documentation: cette tâche modifie les données pour…
+
+    def collection
+      # Collection to be iterated over
+      # Must be Active Record Relation or Array
+    end
+
+    def process(element)
+      # The work to be done in a single iteration of the task.
+      # This should be idempotent, as the same element may be processed more
+      # than once if the task is interrupted and resumed.
+    end
+
+    def count
+      # Optionally, define the number of rows that will be iterated over
+      # This is used to track the task's progress
+    end
+  end
+<% end -%>
+end