Backend: Add event tracking when AI Catalog items are enabled, disabled, etc.

About

We want to add event tracking to our ItemConsumer mutations, which are when projects and groups enable, or disabled. This happens through the create, update, or destroy. We can track enabled state in the additional properties.

Proposal

See https://docs.gitlab.com/development/internal_analytics/internal_event_instrumentation/quick_start/ for technical guide.

Note, the additional_properties keys are recommended to start with label, property and value regardless of the actual meaning of the data https://docs.gitlab.com/development/internal_analytics/internal_event_instrumentation/quick_start/#additional-properties.

Create:

track_internal_event(
  "create_ai_catalog_item_consumer",
  user: current_user,
  project: <project|nil>, # will be nil when associated with group
  namespace: <group|nil>, # will be nil when associated with project
  additional_properties: {
    label: <enabled state>,
    property: <locked state>
  }
)

Update:

track_internal_event(
  "update_ai_catalog_item_consumer",
  user: current_user,
  project: <project|nil>, # will be nil when associated with group
  namespace: <group|nil>, # will be nil when associated with project
  additional_properties: {
    label: <enabled state>,
    property: <locked state>
  }
)

Delete:

track_internal_event(
  "delete_ai_catalog_item_consumer",
  user: current_user,
  project: <project|nil>, # will be nil when associated with group
  namespace: <group|nil> # will be nil when associated with project)
)