Reapply "[Security Solution] [Attack discovery] Output chunking / refinement, LangGraph migration, and evaluation improvements (#195669)"

[jbudz]

Reapplies a revert I made in dbe6d82. See #195669 for full description.

Also includes #196381 to fix an import statement.

[jbudz]

buildkite test this

[jbudz]

buildkite test this

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: e44d249

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
integrationAssistant	451	456	+5
securitySolution	6016	6030	+14
total			+19

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
@kbn/elastic-assistant	133	139	+6
@kbn/elastic-assistant-common	366	372	+6
total			+12

Async chunks

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

id	before	after	diff
securitySolution	20.6MB	20.7MB	+16.4KB

Unknown metric groups

API count

id	before	after	diff
@kbn/elastic-assistant	159	168	+9
@kbn/elastic-assistant-common	393	403	+10
total			+19

ESLint disabled line counts

id	before	after	diff
elasticAssistant	35	32	-3

Total ESLint disabled count

id	before	after	diff
elasticAssistant	35	32	-3

History

• 💔 Build #242868 failed e44d249