[Security Solution] [AI Assistant] Update LLM connector selector component (#236811)

## Summary

Summarize your PR. If it involves visual changes include a screenshot or
gif.

Update the connector selector component within the security solution to
use the shared component from
`x-pack/platform/packages/shared/ai-assistant/ai-assistant-connector-selector-action/connector_selectable.tsx`.

Security AI Assistant:
<img width="1717" height="556" alt="image"
src="https://github.com/user-attachments/assets/a9d46c3f-c92e-4fa5-9982-c42c50092902"
/>

Attack Discovery:
<img width="2680" height="933" alt="image"
src="https://github.com/user-attachments/assets/b87b2b46-dca1-4964-ae01-c811d56f21b4"
/>

Security Get Started:
<img width="1570" height="1525" alt="image"
src="https://github.com/user-attachments/assets/1e10a767-0d85-4726-ad2c-c55e492f560b"
/>

Automatic migration Get Started:
<img width="1420" height="1004" alt="image"
src="https://github.com/user-attachments/assets/b146e52b-c92c-4493-8a2d-033579eeca34"
/>

### How to test:
1. Enable the feature flag:
```
// kibana.dev.yml
feature_flags.overrides.aiAssistant.defaultLlmSettingEnabled: true
```
2. Start Kibana
3. Go to Stack management > GenAi setting and in the default llm setting
select a default LLM and check the checkbox below, making only the
default LLM available.
4. Go to the security solution and open the assistant. Verify that only
the default LLM you have selected is available. Also, verify the new LLM
selector component is used (see screenshots above).
5. Go to attack discovery, and in the run configuration, again check
that only your default LLM is available to be selected. Also ensure the
new LLM selector component is used (see screenshot above).
6. Go to the Security solution getting started page and check that the
new component is used in the Security tab and in the Automatic
Migrations tab (see screenshot above).

### Checklist

Check the PR satisfies following conditions.

Reviewers should verify this PR satisfies this list as well.

- [X] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/src/platform/packages/shared/kbn-i18n/README.md)
- [X]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials
- [X] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [X] If a plugin configuration key changed, check if it needs to be
allowlisted in the cloud and added to the [docker
list](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)
- [X] This was checked for breaking HTTP API changes, and any breaking
changes have been approved by the breaking-change committee. The
`release_note:breaking` label should be applied in these situations.
- [X] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [X] The PR description includes the appropriate Release Notes section,
and the correct `release_note:*` label is applied per the
[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)
- [X] Review the [backport
guidelines](https://docs.google.com/document/d/1VyN5k91e5OVumlc0Gb9RPa3h1ewuPE705nRtioPiTvY/edit?usp=sharing)
and apply applicable `backport:*` labels.

### Identify risks

Does this PR introduce any risks? For example, consider risks like hard
to test bugs, performance regression, potential of data loss.

Describe the risk, its severity, and mitigation for each identified
risk. Invite stakeholders and evaluate how to proceed before merging.

- [ ] [See some risk
examples](https://github.com/elastic/kibana/blob/main/RISK_MATRIX.mdx)
- [ ] ...

---------

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Patryk Kopyciński <contact@patrykkopycinski.com>
(cherry picked from commit b7b1747)

# Conflicts:
#	x-pack/platform/packages/shared/kbn-elastic-assistant-common/tsconfig.json
#	x-pack/platform/packages/shared/kbn-elastic-assistant/impl/connectorland/connector_selector/index.tsx
#	x-pack/platform/packages/shared/kbn-elastic-assistant/tsconfig.json
#	x-pack/solutions/security/packages/connectors/src/connector_selector.test.tsx
#	x-pack/solutions/security/packages/connectors/src/connector_selector.tsx
#	x-pack/solutions/security/plugins/security_solution/public/common/hooks/use_ai_connectors.ts
#	x-pack/solutions/security/plugins/security_solution/public/onboarding/components/onboarding_body/cards/common/connectors/connector_cards.test.tsx
#	x-pack/solutions/security/plugins/security_solution/public/onboarding/components/onboarding_body/cards/common/connectors/connector_selector_panel.test.tsx
#	x-pack/solutions/security/plugins/security_solution/public/onboarding/components/onboarding_body/cards/common/connectors/connector_selector_panel.tsx
#	x-pack/solutions/security/plugins/security_solution/public/onboarding/components/onboarding_body/cards/siem_migrations/ai_connector/connectors_check_complete.ts
#	x-pack/solutions/security/plugins/security_solution/public/siem_migrations/common/components/start_migration_modal/index.test.tsx
#	x-pack/solutions/security/plugins/security_solution/public/siem_migrations/common/components/start_migration_modal/index.tsx
#	x-pack/solutions/security/test/security_solution_cypress/cypress/tasks/assistant.ts
#	x-pack/test/security_solution_cypress/cypress/tasks/api_calls/connectors.ts

Author: KDKHD

x-pack/platform/packages/shared/ai-assistant/ai-assistant-connector-selector-action/connector_selectable.test.tsx

@@ -55,9 +55,9 @@ describe('ConnectorSelectable', () => {
     ];
 
     allConnectors.forEach((connector) => {
+      expect(screen.queryByText(connector.label)).toBeInTheDocument();
       expect(connector['data-test-subj']).toBeDefined();
       expect(screen.queryByTestId(connector['data-test-subj']!)).toBeInTheDocument();
-      expect(screen.queryByText(connector.label)).toBeInTheDocument();
     });
 
     expect(allConnectors.length).toBe(6);

x-pack/platform/packages/shared/ai-assistant/ai-assistant-connector-selector-action/connector_selectable.tsx

@@ -13,7 +13,13 @@ import { ConnectorSelectableFooter } from './connector_selectable_footer';
 
 export type ConnectorSelectableProps = Pick<
   ConnectorSelectableComponentProps,
-  'value' | 'onValueChange' | 'customConnectors' | 'preConfiguredConnectors' | 'defaultConnectorId'
+  | 'value'
+  | 'onValueChange'
+  | 'customConnectors'
+  | 'preConfiguredConnectors'
+  | 'defaultConnectorId'
+  | 'renderOption'
+  | 'data-test-subj'
 > &
   Pick<ConnectorSelectableFooterProps, 'onAddConnectorClick' | 'onManageConnectorsClick'>;
 
@@ -36,6 +42,8 @@ export const ConnectorSelectable: React.FC<ConnectorSelectableProps> = (props) =
       preConfiguredConnectors={props.preConfiguredConnectors}
       defaultConnectorId={props.defaultConnectorId}
       footer={footer}
+      renderOption={props.renderOption}
+      data-test-subj={props['data-test-subj']}
     />
   );
 };

x-pack/platform/packages/shared/ai-assistant/ai-assistant-connector-selector-action/connector_selectable_component.tsx

@@ -6,7 +6,7 @@
  */
 
 import React, { useMemo, useState } from 'react';
-import type { EuiSelectableOption } from '@elastic/eui';
+import type { EuiSelectableOption, EuiSelectableProps } from '@elastic/eui';
 import { EuiBadge, EuiPanel, EuiSelectable } from '@elastic/eui';
 import type { EuiSelectableLIOption } from '@elastic/eui/src/components/selectable/selectable_option';
 import { translations as i8n } from './connector_selector.translations';
@@ -31,6 +31,9 @@ export interface ConnectorSelectableComponentProps<
   onValueChange?: (value: string, option: EuiSelectableOption<T>) => void;
   /** Selectable footer component */
   footer?: React.ReactElement;
+
+  /** Render option component */
+  renderOption?: EuiSelectableProps['renderOption'];
 }
 
 export const ConnectorSelectableComponent = <T extends { value: string } = { value: string }>(
@@ -63,6 +66,7 @@ export const ConnectorSelectableComponent = <T extends { value: string } = { val
         key: connector.value,
         checked: connector.value === selectedValue ? 'on' : undefined,
         append: connector.value === props.defaultConnectorId ? defaultConnectorBadge : undefined,
+        'data-test-subj': connector['data-test-subj'] ?? connector.value,
       })),
     [props.preConfiguredConnectors, selectedValue, props.defaultConnectorId, defaultConnectorBadge]
   );
@@ -74,6 +78,7 @@ export const ConnectorSelectableComponent = <T extends { value: string } = { val
         key: connector.value,
         checked: connector.value === selectedValue ? 'on' : undefined,
         append: connector.value === props.defaultConnectorId ? defaultConnectorBadge : undefined,
+        'data-test-subj': connector['data-test-subj'] ?? connector.value,
       })),
     [props.customConnectors, selectedValue, props.defaultConnectorId, defaultConnectorBadge]
   );
@@ -124,6 +129,7 @@ export const ConnectorSelectableComponent = <T extends { value: string } = { val
         singleSelection
         options={options}
         onChange={handleChange}
+        renderOption={props.renderOption}
       >
         {(list) => (
           <>

x-pack/platform/packages/shared/kbn-elastic-assistant-common/impl/connectors/get_available_connectors.test.ts

@@ -0,0 +1,88 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { SettingsStart } from '@kbn/core-ui-settings-browser';
+import {
+  GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR,
+  GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR_DEFAULT_ONLY,
+} from '@kbn/management-settings-ids';
+import { getAvailableAiConnectors } from './get_available_connectors';
+
+describe('getAvailableConnectors', () => {
+  const connectors = [
+    {
+      id: 'connectorId1',
+    },
+    {
+      id: 'connectorId2',
+    },
+    {
+      id: 'connectorId3',
+    },
+  ];
+
+  const settingsClientGet = jest.fn().mockImplementation((settingKey) => {
+    if (settingKey === GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR) {
+      return 'connectorId1';
+    }
+    if (settingKey === GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR_DEFAULT_ONLY) {
+      return false;
+    }
+  });
+
+  const settings = {
+    client: {
+      get: settingsClientGet,
+    },
+  } as unknown as SettingsStart;
+
+  it('should return all connectors if default connector is not set', () => {
+    const result = getAvailableAiConnectors({
+      allAiConnectors: connectors,
+      settings,
+    });
+
+    expect(result).toEqual(connectors);
+  });
+
+  it('should return only the default connector if default connector only is set', () => {
+    settingsClientGet.mockImplementation((settingKey) => {
+      if (settingKey === GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR) {
+        return 'connectorId1';
+      }
+      if (settingKey === GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR_DEFAULT_ONLY) {
+        return true;
+      }
+    });
+
+    const result = getAvailableAiConnectors({
+      allAiConnectors: connectors,
+      settings,
+    });
+
+    expect(result.length).toEqual(1);
+    expect(result[0].id).toEqual('connectorId1');
+  });
+
+  it('should return all connectors if default connector only is set but default connector is not found', () => {
+    settingsClientGet.mockImplementation((settingKey) => {
+      if (settingKey === GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR) {
+        return 'unknownConnectorId';
+      }
+      if (settingKey === GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR_DEFAULT_ONLY) {
+        return true;
+      }
+    });
+
+    const result = getAvailableAiConnectors({
+      allAiConnectors: connectors,
+      settings,
+    });
+
+    expect(result).toEqual(connectors);
+  });
+});

x-pack/platform/packages/shared/kbn-elastic-assistant-common/impl/connectors/get_available_connectors.ts

@@ -0,0 +1,47 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { SettingsStart } from '@kbn/core-ui-settings-browser';
+import {
+  GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR,
+  GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR_DEFAULT_ONLY,
+} from '@kbn/management-settings-ids';
+
+interface Props<T extends { id: string }> {
+  allAiConnectors: T[];
+  settings: SettingsStart;
+}
+
+/**
+ * Get the available AI connectors based on the default AI connector settings. This is only a
+ * client side filter and does not make any API calls.
+ *
+ * @param allAiConnectors - The list of all AI connectors.
+ * @param settings - Kibana SettingsStart.
+ * @returns The available AI connectors.
+ */
+export const getAvailableAiConnectors = <T extends { id: string }>({
+  allAiConnectors,
+  settings,
+}: Props<T>): T[] => {
+  const defaultAiConnectorId = settings.client.get<string>(GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR);
+  const defaultAiConnectorOnly = settings.client.get<boolean>(
+    GEN_AI_SETTINGS_DEFAULT_AI_CONNECTOR_DEFAULT_ONLY,
+    false
+  );
+
+  const availableConnectors = allAiConnectors.filter((connector) => {
+    if (defaultAiConnectorOnly) {
+      return connector.id === defaultAiConnectorId;
+    }
+    return true;
+  });
+
+  const aiConnectors = availableConnectors.length > 0 ? availableConnectors : allAiConnectors;
+
+  return aiConnectors;
+};

x-pack/platform/packages/shared/kbn-elastic-assistant/impl/connectorland/connector_selector/index.test.tsx

@@ -71,7 +71,7 @@ describe('Connector selector', () => {
       </TestProviders>
     );
     fireEvent.click(getByTestId('connector-selector'));
-    expect(getByTestId('addNewConnectorButton')).toBeInTheDocument();
+    expect(getByTestId('aiAssistantAddConnectorButton')).toBeInTheDocument();
   });
   it('renders with provided selected connector', () => {
     const { getByTestId } = render(
@@ -100,7 +100,7 @@ describe('Connector selector', () => {
       </TestProviders>
     );
     fireEvent.click(getByTestId('connector-selector'));
-    fireEvent.click(getByTestId('addNewConnectorButton'));
+    fireEvent.click(getByTestId('aiAssistantAddConnectorButton'));
 
     fireEvent.click(getByTestId('modal-mock'));