🌊 Move streams to platform

[flash1293]

This PR moves the streams and streams_app plugins into platform so they can be used in other solutions in the future. This PR is not actually making it available in other solutions yet since we are still discussing the release plans.

Inlined helpers

As discussed before, this PR inlines a couple simple helper methods for query building, time zone normalization, a header portal helper and a data plugin timefilter state react integration hook as there is no good place for these outside of the observability solution.

streams_app plugin

The streams_app plugin is not actually registering anything, instead it simply exports a component that renders the app which needs to be consumed by another plugin to turn it into a registered app - for now, observability_streams_wrapper takes over this job.

observability_streams_wrapper plugin

While 99% of the streams logic is moved into the platform/shared/streams_app, two bits are left behind in observability_streams_wrapper:

• The actual app registration
• Integration with the observability_shared PageTemplate component

Once we decide streams should be displayed outside of the observability solution, it's probably not necessary anymore to decouple app definition and registration like this because it will always be visible no matter the solution. Once this is the case, the navigation registration can be moved into the central observability plugin, like it's handled with other apps like infra.

[flash1293]

/ci

[flash1293]

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[flash1293]

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[flash1293]

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[flash1293]

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[flash1293]

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[flash1293]

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[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 2f0eb13
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Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
streamsApp	311	312	+1
streamsAppWrapper	-	8	+8
total			+9

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
streamsApp	8	13	+5
streamsAppWrapper	-	2	+2
total			+7

Async chunks

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

id	before	after	diff
streamsApp	293.1KB	296.3KB	+3.2KB

Page load bundle

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

id	before	after	diff
streamsApp	7.1KB	6.3KB	-775.0B
streamsAppWrapper	-	4.7KB	+4.7KB
total			+4.0KB

Unknown metric groups

API count

id	before	after	diff
streamsApp	8	17	+9
streamsAppWrapper	-	2	+2
total			+11

async chunk count

id	before	after	diff
streamsApp	6	7	+1

ESLint disabled in files

id	before	after	diff
streamsAppWrapper	-	1	+1

ESLint disabled line counts

id	before	after	diff
streamsApp	7	6	-1

References to deprecated APIs

id	before	after	diff
streamsApp	4	6	+2

Total ESLint disabled count

id	before	after	diff
streamsApp	11	10	-1
streamsAppWrapper	-	1	+1
total			-0

History

• 💚 Build #278082 succeeded 8297bcf
• 💔 Build #278073 failed 14b362f
• 💔 Build #278059 failed 896c309
• 💔 Build #278051 failed adc1ede
• 💔 Build #278019 failed 5515e3c
• 💔 Build #278006 failed 653685b

[kibanamachine]

Starting backport for target branches: 8.x

https://github.com/elastic/kibana/actions/runs/13460067873

[kibanamachine]

💔 All backports failed

Status	Branch	Result
❌	8.x	Backport failed because of merge conflicts You might need to backport the following PRs to 8.x: - SKA: Relocate core-test-helpers (#212029)

Manual backport

To create the backport manually run:

node scripts/backport --pr 211893

Questions ?

Please refer to the Backport tool documentation