Sustainable Kibana Architecture: Move modules owned by @elastic/obs-ai-assistant (#202763)

## Summary

This PR aims at relocating some of the Kibana modules (plugins and
packages) into a new folder structure, according to the _Sustainable
Kibana Architecture_ initiative.

> [!IMPORTANT]
> * We kindly ask you to:
> * Manually fix the errors in the error section below (if there are
any).
> * Search for the `packages[\/\\]` and `plugins[\/\\]` patterns in the
source code (Babel and Eslint config files), and update them
appropriately.
> * Manually review
`.buildkite/scripts/pipelines/pull_request/pipeline.ts` to ensure that
any CI pipeline customizations continue to be correctly applied after
the changed path names
> * Review all of the updated files, specially the `.ts` and `.js` files
listed in the sections below, as some of them contain relative paths
that have been updated.
> * Think of potential impact of the move, including tooling and
configuration files that can be pointing to the relocated modules. E.g.:
>     * customised eslint rules
>     * docs pointing to source code

> [!NOTE]
> * This PR has been auto-generated.
> * Any manual contributions will be lost if the 'relocate' script is
re-run.
> * Try to obtain the missing reviews / approvals before applying manual
fixes, and/or keep your changes in a .patch / git stash.
> * Please use
[#sustainable_kibana_architecture](https://elastic.slack.com/archives/C07TCKTA22E)
Slack channel for feedback.

#### 5 plugin(s) are going to be relocated:

| Id | Target folder |
| -- | ------------- |
| `@kbn/ai-assistant-management-plugin` |
`src/platform/plugins/shared/ai_assistant_management/selection` |
| `@kbn/data-usage-plugin` |
`x-pack/platform/plugins/private/data_usage` |
| `@kbn/observability-ai-assistant-app-plugin` |
`x-pack/solutions/observability/plugins/observability_ai_assistant_app`
|
| `@kbn/observability-ai-assistant-management-plugin` |
`x-pack/solutions/observability/plugins/observability_ai_assistant_management`
|
| `@kbn/observability-ai-assistant-plugin` |
`x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant`
|




#### 2 packages(s) are going to be relocated:

| Id | Target folder |
| -- | ------------- |
| `@kbn/observability-ai-common` |
`x-pack/solutions/observability/packages/observability_ai/observability_ai_common`
|
| `@kbn/observability-ai-server` |
`x-pack/solutions/observability/packages/observability_ai/observability_ai_server`
|


<details >
<summary>Updated references</summary>

```
./.github/paths-labeller.yml
./.i18nrc.json
./docs/developer/plugin-list.asciidoc
./package.json
./packages/kbn-repo-packages/package-map.json
./packages/kbn-ts-projects/config-paths.json
./src/dev/storybook/aliases.ts
./src/platform/plugins/shared/ai_assistant_management/selection/jest.config.js
./src/platform/plugins/shared/discover/tsconfig.type_check.json
./tsconfig.base.json
./tsconfig.base.type_check.json
./tsconfig.refs.json
./x-pack/.i18nrc.json
./x-pack/platform/plugins/private/data_usage/jest.config.js
./x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/jest.config.js
./x-pack/plugins/enterprise_search/kibana.jsonc
./x-pack/plugins/observability_solution/observability_ai_assistant/server/functions/index.ts
./x-pack/plugins/observability_solution/observability_ai_assistant_app/tsconfig.type_check.json
./x-pack/plugins/search_connectors/kibana.jsonc
./x-pack/solutions/observability/packages/observability_ai/observability_ai_common/jest.config.js
./x-pack/solutions/observability/packages/observability_ai/observability_ai_server/jest.config.js
./x-pack/solutions/observability/plugins/observability_ai_assistant_app/jest.config.js
./x-pack/solutions/observability/plugins/observability_ai_assistant_app/scripts/evaluation/README.md
./x-pack/solutions/observability/plugins/observability_ai_assistant_management/jest.config.js
./x-pack/test/tsconfig.type_check.json
./x-pack/test_serverless/tsconfig.type_check.json
./yarn.lock
```

</details><details >
<summary>Updated relative paths</summary>

```
src/platform/plugins/shared/ai_assistant_management/selection/jest.config.js:12
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.json:2
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:18
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:2
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:21
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:24
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:27
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:30
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:33
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:36
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:39
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:42
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:45
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:48
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:51
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:54
src/platform/plugins/shared/ai_assistant_management/selection/tsconfig.type_check.json:57
x-pack/platform/plugins/private/data_usage/jest.config.js:10
x-pack/platform/plugins/private/data_usage/tsconfig.json:11
x-pack/platform/plugins/private/data_usage/tsconfig.json:2
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/jest.config.js:10
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.json:2
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.json:7
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:100
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:103
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:2
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:22
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:25
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:28
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:31
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:34
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:37
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:40
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:43
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:46
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:49
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:52
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:55
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:58
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:61
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:64
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:67
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:70
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:73
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:76
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:79
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:82
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:85
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:88
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:9
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:91
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:94
x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/tsconfig.type_check.json:97
x-pack/solutions/observability/packages/observability_ai/observability_ai_common/jest.config.js:10
x-pack/solutions/observability/packages/observability_ai/observability_ai_common/tsconfig.json:2
x-pack/solutions/observability/packages/observability_ai/observability_ai_server/jest.config.js:10
x-pack/solutions/observability/packages/observability_ai/observability_ai_server/tsconfig.json:2
x-pack/solutions/observability/plugins/observability_ai_assistant_app/jest.config.js:10
x-pack/solutions/observability/plugins/observability_ai_assistant_app/scripts/evaluation/read_kibana_config.ts:16
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.json:2
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.json:7
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:100
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:103
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:106
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:109
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:112
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:118
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:121
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:124
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:127
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:130
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:133
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:136
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:139
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:142
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:145
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:148
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:151
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:154
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:157
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:160
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:163
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:166
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:169
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:172
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:175
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:178
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:181
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:184
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:190
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:193
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:2
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:22
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:28
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:31
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:34
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:37
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:40
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:43
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:46
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:49
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:52
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:55
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:58
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:61
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:64
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:67
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:70
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:73
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:76
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:79
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:82
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:85
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:88
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:9
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:91
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:94
x-pack/solutions/observability/plugins/observability_ai_assistant_app/tsconfig.type_check.json:97
x-pack/solutions/observability/plugins/observability_ai_assistant_management/jest.config.js:10
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.json:2
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:18
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:2
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:21
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:24
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:27
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:30
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:33
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:36
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:39
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:45
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:48
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:51
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:54
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:60
x-pack/solutions/observability/plugins/observability_ai_assistant_management/tsconfig.type_check.json:63
```

</details>

docs/developer/plugin-list.asciidoc

@@ -28,7 +28,7 @@ allowing users to configure their advanced settings, also known
 as uiSettings within the code.
 
 
-|{kib-repo}blob/{branch}/src/plugins/ai_assistant_management/selection/README.md[aiAssistantManagementSelection]
+|{kib-repo}blob/{branch}/src/platform/plugins/shared/ai_assistant_management/selection/README.md[aiAssistantManagementSelection]
 |The aiAssistantManagementSelection plugin manages the Ai Assistant management section.
 
 
@@ -541,7 +541,7 @@ Plugin server-side only. Plugin has three main functions:
 |In order to make ongoing maintenance of log collection easy we want to introduce the concept of data set quality, where users can easily get an overview on the data sets they have with information such as integration, size, last activity, among others.
 
 
-|{kib-repo}blob/{branch}/x-pack/plugins/data_usage/README.md[dataUsage]
+|{kib-repo}blob/{branch}/x-pack/platform/plugins/private/data_usage/README.md[dataUsage]
 |Serverless only plugin for users to view data usage
 
 
@@ -747,15 +747,15 @@ Elastic.
 |This plugin provides shared components and services for use across observability solutions, as well as the observability landing page UI.
 
 
-|{kib-repo}blob/{branch}/x-pack/plugins/observability_solution/observability_ai_assistant/README.md[observabilityAIAssistant]
+|{kib-repo}blob/{branch}/x-pack/platform/plugins/shared/observability_solution/observability_ai_assistant/README.md[observabilityAIAssistant]
 |This document gives an overview of the features of the Observability AI Assistant at the time of writing, and how to use them. At a high level, the Observability AI Assistant offers contextual insights, and a chat functionality that we enrich with function calling, allowing the LLM to hook into the user's data. We also allow the LLM to store things it considers new information as embeddings into Elasticsearch, and query this knowledge base when it decides it needs more information, using ELSER.
 
 
-|{kib-repo}blob/{branch}/x-pack/plugins/observability_solution/observability_ai_assistant_app/README.md[observabilityAIAssistantApp]
+|{kib-repo}blob/{branch}/x-pack/solutions/observability/plugins/observability_ai_assistant_app/README.md[observabilityAIAssistantApp]
 |This app registers defaults functions. It exists as a separate plugin to avoid cyclical dependencies.
 
 
-|{kib-repo}blob/{branch}/x-pack/plugins/observability_solution/observability_ai_assistant_management/README.md[observabilityAiAssistantManagement]
+|{kib-repo}blob/{branch}/x-pack/solutions/observability/plugins/observability_ai_assistant_management/README.md[observabilityAiAssistantManagement]
 |The observabilityAiAssistantManagement plugin manages the Ai Assistant for Observability and Search management section.