feat: Support OLLAMA provider

- Added OllamaClient to handle conversations with the Ollama API.
- Introduced OllamaDialect for managing thinking modes.
- Created data classes: OllamaFunctionCall, OllamaListedModel, OllamaMessage, OllamaShowRequest, OllamaShowResponse, OllamaTagsResponse, OllamaToolCall, OllamaToolDefinition, and OllamaToolFunction for structured API communication.
- Developed unit tests for OllamaClient to validate model listing, chat completion, streaming responses, and tool calling capabilities.
- Configured test properties for local Ollama instance.

src/main/java/de/extio/lmlib/client/ClientAutoConfiguration.java

@@ -6,6 +6,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
 
+import de.extio.lmlib.client.ollama.OllamaClient;
 import de.extio.lmlib.client.oai.completion.chat.ChatCompletionClient;
 import de.extio.lmlib.client.oai.completion.text.TextCompletionClient;
 import de.extio.lmlib.profile.ProfileAutoConfiguration;
@@ -33,5 +34,11 @@ public class ClientAutoConfiguration {
 	ChatCompletionClient chatCompletionClient() {
 		return new ChatCompletionClient();
 	}
+
+	@Bean
+	@ConditionalOnMissingBean
+	OllamaClient ollamaClient() {
+		return new OllamaClient();
+	}
 	
 }