[Discover] Add profiles inspector (#184077)

[AlexGPlay]

Summary

Closes #184077

Adds a new tab to the inspector flyout that shows the contexts/profiles that are currently active.

Grabacion.de.pantalla.2025-06-16.a.las.16.24.30.mov

Checklist

Check the PR satisfies following conditions.

Reviewers should verify this PR satisfies this list as well.

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Unit or functional tests were updated or added to match the most common scenarios

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[davismcphee]

Changes look good overall and it worked well when testing! I left a bit of feedback, but nothing major.

The only drawback I see to the current approach vs the PoC is that since we're not using observables for the contexts, the profiles info isn't reactive. E.g. if you open the inspector while a search is still running, you won't get the updated document profiles when the search completes unless you close and reopen. That said, it's mainly a debugging tool so I'm not too concerned about it.

[AlexGPlay]

Changes look good overall and it worked well when testing! I left a bit of feedback, but nothing major.

The only drawback I see to the current approach vs the PoC is that since we're not using observables for the contexts, the profiles info isn't reactive. E.g. if you open the inspector while a search is still running, you won't get the updated document profiles when the search completes unless you close and reopen. That said, it's mainly a debugging tool so I'm not too concerned about it.

yeah, it's more like a snapshot of the profiles - if it doesn't look like this i can rethink it but i guess for now it should be enough

[davismcphee]

LGTM 👍 Great to finally have this for debugging!

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: cc6e954

Failed CI Steps

• FTR Configs #84

Test Failures

• [job] [logs] FTR Configs #84 / ESQL execution logic API @ess @serverless ES|QL rule type shard failures should handle shard failures and include warning in logs for query that is not aggregating

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
discover	1339	1352	+13

Async chunks

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

id	before	after	diff
discover	1.1MB	1.1MB	+6.9KB

Page load bundle

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

id	before	after	diff
discover	22.0KB	22.4KB	+448.0B

Unknown metric groups

async chunk count

id	before	after	diff
discover	38	39	+1

ESLint disabled line counts

id	before	after	diff
discover	15	16	+1

Total ESLint disabled count

id	before	after	diff
discover	17	18	+1

History

• 💚 Build #312949 succeeded d2a374a
• 💚 Build #310811 succeeded 3826adc
• 💔 Build #310771 failed 520d81b
• 💔 Build #310717 failed 780a305
• 💚 Build #310528 succeeded 0a35ef2
• 💛 Build #310383 was flaky a342821

cc @AlexGPlay