[Security solution] Reinstall product documentation callout

[stephmilovic]

Summary

Product documentation is installed when the assistant is initialized. This PR gives a path for the user to reinstall the product documentation in case it gets deleted (via o11y assistant settings)

Not installed

Installing

Installed

To test

1. Visit the KB settings page and ensure no callout is present for installing product documentation
2. Uninstall the product documentation from o11y assistant settings (app/management/kibana/observabilityAiAssistantManagement => Uninstall)
3. Revisit the KB settings page and ensure the callout is present for installing product documentation
4. Press install
5. Once installation is complete, the callout should no longer be present

[elasticmachine]

Pinging @elastic/security-solution (Team: SecuritySolution)

[KDKHD]

Tested locally and looks good. Left a comment but it is a nitpick.

[KDKHD]

Are the additional states isInstalled and isInstalling necessary? I believe they could be removed with something like this which would prevent a re-render:

Suggested change

	const [isInstalled, setInstalled] = useState<boolean>(true);
	const [isInstalling, setInstalling] = useState<boolean>(false);
	const { mutateAsync: installProductDoc, isLoading: isInstalling } = useInstallProductDoc();
	const { status, isLoading: isStatusLoading } = useGetProductDocStatus();
	const isInstalledOrUnknown = status == undefined ? true : status.overall === 'installed'
	...
	if (isInstalledOrUnknown) {
	return null;
	}

[stephmilovic]

This does not track if isInstalling, we need to show loading indicator

[stephmilovic]

I went ahead and combined state values to avoid separate state updates triggering multiple renders.

[jamesspi]

Thanks for this @stephmilovic. For the text description, can we use the following instead?

The Elastic Documentation has been uninstalled. Please reinstall to ensure the most accurate results from the AI Assistant.

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 6962cba

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
securitySolution	6536	6541	+5

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
securitySolution	22.2MB	22.2MB	+3.0KB

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
securitySolution	88.2KB	88.2KB	+32.0B

History

• 💔 Build #265821 failed 644f72f
• 💔 Build #265781 failed da69efb
• 💔 Build #265697 failed c8a8f5a
• 💔 Build #265675 failed 12c37bf
• 💔 Build #265453 failed a019e4f
• 💔 Build #265413 failed d673b1c

[xcrzx]

Rules area test changes LGTM