[9.0][Security Assistant] Add space id provider

[angorayc]

Summary

#224127
Steps to reproduce: (env)

1. Visit app/management/kibana/securityAiAssistantManagement?tab=knowledge_base
2. Observe that the knowledge base is not showed due to a client side error:

Expected: https://www.elastic.co/docs/solutions/security/ai/ai-assistant-knowledge-base#_option_2_enable_knowledge_base_from_the_security_ai_settings

Checklist

Check the PR satisfies following conditions.

Reviewers should verify this PR satisfies this list as well.

• Unit or functional tests were updated or added to match the most common scenarios

[KDKHD]

Is it possible to modify this test file so that it does not mock AssistantSettingsManagement? Alternatively, it would be great if we could add a test that would fail if is removed by accident in the future.

[e40pud]

I guess we could try to do that by wrapping assistant settings management component into the AssistantSpaceIdProvider within the plugin setup if we have access to active space id from there https://github.com/elastic/kibana/blob/main/x-pack/solutions/security/plugins/security_solution/public/plugin.tsx#L214. This way we would avoid using useSpaceId hook completely.

But if that is too much work (+ I guess this is an urgent fix), I think we can also go with the current solution and update it later if needed.

[angorayc]

In the implementation on the main branch:

AssistantSpaceIdProvider was introduced but was accidentally dropped during its 9.0 backport
x-pack/solutions/security/plugins/security_solution/public/assistant/stack_management/management_settings.tsx:

https://github.com/elastic/kibana/pull/221566/files#diff-09e012f07b9ef5bd3559d3e05261436872407428a0fa8d1e2b4651b8f887cabc

I applied the same fix for its test file but some tests failed, I'm still trying to figure out:
x-pack/solutions/security/plugins/security_solution/public/assistant/stack_management/management_settings.test.tsx:
https://github.com/elastic/kibana/pull/221566/files#diff-14290c240aafc6f614c221dbde3b575f627f0ab8484b7186ed4d8e029fc9c3b7

[e40pud]

Sounds good! Thank you for the fix - tested locally and it worked. Will leave approval to @KDKHD

[angorayc]

Found another line dropped during the backport: https://github.com/elastic/kibana/pull/221566/files#diff-09e012f07b9ef5bd3559d3e05261436872407428a0fa8d1e2b4651b8f887cabcR16

I'd keep AssistantSettingsManagement to align with the code with the main branch:
https://github.com/elastic/kibana/pull/221566/files#diff-14290c240aafc6f614c221dbde3b575f627f0ab8484b7186ed4d8e029fc9c3b7

and added scenarios for both space id is available and unavailable.

I'll also re-think the error display for the AssistantSpaceIdProvider and try not to let it blocks the UI (I'll do the enhancement in a new PR and do the code change from the main branch).

[elasticmachine]

💚 Build Succeeded

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• Commit: 270b0cb

Metrics [docs]

Async chunks

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

id	before	after	diff
securitySolution	8.9MB	8.9MB	+295.0B