[8.x] Prefix inference endpoint with “obs_” (#200174) (#200289)

# Backport

This will backport the following commits from `main` to `8.x`:
- [Prefix inference endpoint with “obs_”
(#200174)](#200174)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Søren
Louv-Jansen","email":"soren.louv@elastic.co"},"sourceCommit":{"committedDate":"2024-11-15T01:16:35Z","message":"Prefix
inference endpoint with “obs_” (#200174)\n\nFollow-up to
https://github.com/elastic/kibana/pull/186499","sha":"2296a791790bd4fa0b5dd5d22181aa3549af941c","branchLabelMapping":{"^v9.0.0$":"main","^v8.17.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v9.0.0","backport:prev-minor","Team:Obs
AI Assistant","ci:project-deploy-observability"],"title":"Prefix
inference endpoint with
“obs_”","number":200174,"url":"https://github.com/elastic/kibana/pull/200174","mergeCommit":{"message":"Prefix
inference endpoint with “obs_” (#200174)\n\nFollow-up to
https://github.com/elastic/kibana/pull/186499","sha":"2296a791790bd4fa0b5dd5d22181aa3549af941c"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/200174","number":200174,"mergeCommit":{"message":"Prefix
inference endpoint with “obs_” (#200174)\n\nFollow-up to
https://github.com/elastic/kibana/pull/186499","sha":"2296a791790bd4fa0b5dd5d22181aa3549af941c"}}]}]
BACKPORT-->

Co-authored-by: Søren Louv-Jansen <soren.louv@elastic.co>

x-pack/plugins/observability_solution/observability_ai_assistant/server/service/inference_endpoint.ts

@@ -10,7 +10,7 @@ import { ElasticsearchClient } from '@kbn/core-elasticsearch-server';
 import { Logger } from '@kbn/logging';
 import moment from 'moment';
 
-export const AI_ASSISTANT_KB_INFERENCE_ID = 'ai_assistant_kb_inference';
+export const AI_ASSISTANT_KB_INFERENCE_ID = 'obs_ai_assistant_kb_inference';
 
 export async function createInferenceEndpoint({
   esClient,

x-pack/test/observability_ai_assistant_api_integration/tests/knowledge_base/knowledge_base_setup.spec.ts

@@ -34,7 +34,7 @@ export default function ApiTest({ getService }: FtrProviderContext) {
         .expect(200);
 
       expect(res.body.service_settings.model_id).to.be('pt_tiny_elser');
-      expect(res.body.inference_id).to.be('ai_assistant_kb_inference');
+      expect(res.body.inference_id).to.be('obs_ai_assistant_kb_inference');
 
       await deleteKnowledgeBaseModel(ml);
       await deleteInferenceEndpoint({ es });

x-pack/test/observability_ai_assistant_api_integration/tests/knowledge_base/knowledge_base_status.spec.ts

@@ -77,7 +77,7 @@ export default function ApiTest({ getService }: FtrProviderContext) {
       expect(res.body.ready).to.be(false);
       expect(res.body.enabled).to.be(true);
       expect(res.body.errorMessage).to.include.string(
-        'Inference endpoint not found [ai_assistant_kb_inference]'
+        'Inference endpoint not found [obs_ai_assistant_kb_inference]'
       );
     });
   });

x-pack/test_serverless/api_integration/test_suites/observability/ai_assistant/tests/knowledge_base/knowledge_base_setup.spec.ts

@@ -56,7 +56,7 @@ export default function ApiTest({ getService }: FtrProviderContext) {
         .expect(200);
 
       expect(res.body.service_settings.model_id).to.be('pt_tiny_elser');
-      expect(res.body.inference_id).to.be('ai_assistant_kb_inference');
+      expect(res.body.inference_id).to.be('obs_ai_assistant_kb_inference');
 
       await deleteKnowledgeBaseModel(ml);
       await deleteInferenceEndpoint({ es });