[Backport 2.16] fix full_response false and no mapping exceptions (#2944)

[mingshl]

Backport 853efd6 from #2944

[mingshl]

flaky test

org.opensearch.ml.tools.VisualizationsToolIT > testVisualizationNotFound STANDARD_OUT
    [2024-09-16T11:01:00,021][INFO ][o.o.m.t.VisualizationsToolIT] [testVisualizationNotFound] before test
    [2024-09-16T11:01:01,536][INFO ][o.o.m.t.ToolIntegrationWithLLMTest] [testVisualizationNotFound] model_id: CrL--5EBIDdBxVjAuLLh, agent_id: zkT--5EBuBCNCxJKvZ9W

REPRODUCE WITH: ./gradlew ':opensearch-ml-plugin:integTest' --tests "org.opensearch.ml.tools.VisualizationsToolIT.testVisualizationNotFound" -Dtests.seed=5077B655C9AC3A6B -Dtests.security.manager=false -Dtests.locale=el -Dtests.timezone=America/Creston -Druntime.java=17
    [2024-09-16T11:01:03,121][INFO ][o.o.m.t.VisualizationsToolIT] [testVisualizationNotFound] after test


Suite: Test class org.opensearch.ml.tools.VisualizationsToolIT
  2> ??? 16, 2024 11:00:58 ?? org.opensearch.client.RestClient logResponse
  2> WARNING: request [POST http://[::1]:43265/.kibana/_doc/bd3b9a17-023f-4ea5-999c-5e5b8835277f?refresh=true] returned 1 warnings: [299 OpenSearch-2.16.0-SNAPSHOT-f84a26e76807ea67a69822c37b1a1d89e7177d9b "index name [.kibana] starts with a dot '.', in the next major version, index names starting with a dot are reserved for hidden indices and system indices"]
  2> REPRODUCE WITH: ./gradlew ':opensearch-ml-plugin:integTest' --tests "org.opensearch.ml.tools.VisualizationsToolIT.testVisualizationNotFound" -Dtests.seed=5077B655C9AC3A6B -Dtests.security.manager=false -Dtests.locale=el -Dtests.timezone=America/Creston -Druntime.java=17
  2> org.opensearch.client.ResponseException: method [DELETE], host [http://[::1]:34649], URI [/_plugins/_ml/models/CrL--5EBIDdBxVjAuLLh], status line [HTTP/1.1 400 Bad Request]
    {"error":{"root_cause":[{"type":"status_exception","reason":"Model cannot be deleted in deploying or deployed state. Try undeploy model first then delete"}],"type":"status_exception","reason":"Model cannot be deleted in deploying or deployed state. Try undeploy model first then delete"},"status":400}