Fix incorrect ollama autoconfiguration changes

[dev-jonghoonpark]

Recently, with the merge of #1852, file from the old AutoConfiguration path were unintentionally restored.

Currently, AutoConfiguration classes are located under /auto-configurations/**.
However, OllamaAutoConfiguration is located in /spring-ai-spring-boot-autoconfigure/src/main/java/org/springframework/ai/autoconfigure/ollama/OllamaAutoConfiguration.java.

To address this, the file has been removed, and the originally intended changes have been added to the OllamaApiAutoConfiguration and OllamaChatAutoConfiguration files.

I have confirmed that the following tests pass successfully:

./mvnw verify -Pintegration-tests -pl auto-configurations/models/spring-ai-autoconfigure-model-ollama
./mvnw verify -Pintegration-tests -pl models/spring-ai-ollama

@markpollack @apappascs

---

Additionally, I noticed an incorrect method name in the OllamaEmbeddingModelObservationIT test and made the necessary correction:

• openAiApi → ollamaApi
• openAiEmbeddingModel → ollamaEmbeddingModel

[sunyuhan1998]

Is the name of the method openAiEmbeddingModel in OllamaEmbeddingModelObservationIT also incorrect?

spring-ai/models/spring-ai-ollama/src/test/java/org/springframework/ai/ollama/OllamaEmbeddingModelObservationIT.java

Lines 105 to 108 in 089c3eb

	public OllamaEmbeddingModel openAiEmbeddingModel(OllamaApi ollamaApi,
	TestObservationRegistry observationRegistry) {
	return OllamaEmbeddingModel.builder().ollamaApi(ollamaApi).observationRegistry(observationRegistry).build();
	}

[dev-jonghoonpark]

@sunyuhan1998 Good catch. I'll fix that part as well

[sunyuhan1998]

@sunyuhan1998 Good catch. I'll fix that part as well

Actually, I also found another similar issue, but it's not closely related to the content of this PR :

spring-ai/models/spring-ai-mistral-ai/src/test/java/org/springframework/ai/mistralai/MistralAiEmbeddingModelObservationIT.java

Lines 108 to 112 in 089c3eb

	public MistralAiEmbeddingModel openAiEmbeddingModel(MistralAiApi mistralAiApi,
	TestObservationRegistry observationRegistry) {
	return new MistralAiEmbeddingModel(mistralAiApi, MetadataMode.EMBED,
	MistralAiEmbeddingOptions.builder().build(), RetryTemplate.defaultInstance(), observationRegistry);
	}

[dev-jonghoonpark]

@sunyuhan1998 👍
It might be better to address the part related to MistralAiEmbeddingModelObservationIT.java in a separate PR.

[apappascs]

@sunyuhan1998 Good catch. I'll fix that part as well

Actually, I also found another similar issue, but it's not closely related to the content of this PR :

spring-ai/models/spring-ai-mistral-ai/src/test/java/org/springframework/ai/mistralai/MistralAiEmbeddingModelObservationIT.java

Lines 108 to 112 in 089c3eb

	public MistralAiEmbeddingModel openAiEmbeddingModel(MistralAiApi mistralAiApi,
	TestObservationRegistry observationRegistry) {
	return new MistralAiEmbeddingModel(mistralAiApi, MetadataMode.EMBED,
	MistralAiEmbeddingOptions.builder().build(), RetryTemplate.defaultInstance(), observationRegistry);
	}

fixing that with this pr #3652