Improve LlmIntentClassifier NLP coverage #1006

Job	Run time
Frontend Unit / Frontend Unit (ubuntu-latest)	1m 19s
Docs Governance / Docs Governance	8s
Frontend Unit / Frontend Unit (windows-latest)	2m 16s
Backend Architecture / Backend Architecture	22s
API Integration / API Integration (ubuntu-latest)	1m 17s
Backend Unit / Backend Unit (windows-latest)	1m 27s
API Integration / API Integration (windows-latest)	2m 4s
Container Images / Container Images	1m 20s
Backend Unit / Backend Unit (ubuntu-latest)	1m 3s
E2E Smoke / E2E Smoke	2m 21s
	13m 37s

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