[Siem migrations] Implement UI polling with

[semd]

Summary

Sends "Rule migration complete" notifications from anywhere in the Security Solution app, whenever a rule migration finishes, with a link to the migrated rules.

The polling logic has been encapsulated in the new siemMigrations.rules service so the request loop is centralized in one place. The value updates are broadcasted using the latestStats$ observable.
It will only keep requesting while there are running migrations and will stop automatically when no more migrations are running.

The reusable useLatestStats hook has been created for the UI components to consume. This approach allows multiple components to listen and update their content automatically with every rule migration stats update, having only one request loop running.

The polling will only start if it's not already running and only if the SIEM migration functionality is available, which includes:

• Experimental flag enabled
• Enterprise license
• TODO: feature capability check (RBAC issue)

The polling will try to start when:

• Automatically with the Security Solution application starts
• The first render of every page that uses useLatestStats hook.
• TODO: A new migration is created from the onboarding page (issue)

Tests will be implemented in this task

Example

A Rule migration finishes while using Timeline in the Alerts page:

rule_migrations_notifications.mov

[elasticmachine]

Pinging @elastic/security-threat-hunting (Team:Threat Hunting)

[elasticmachine]

💔 Build Failed

• Buildkite Build
• Commit: 493fdff

Failed CI Steps

• Build Kibana Distribution

History

cc @semd