Remove name assertion from ToolResponseMessage validation

 - Removed the assertion checking for a non-null 'name' in ToolResponseMessage
 - This change affects multiple AI model implementations:
   AzureOpenAiChatModel, MiniMaxChatModel, MistralAiChatModel,
   MoonshotChatModel, OpenAiChatModel, and ZhiPuAiChatModel

 Resolves #1410

Author: tzolov

models/spring-ai-azure-openai/src/main/java/org/springframework/ai/azure/openai/AzureOpenAiChatModel.java

@@ -356,7 +356,6 @@ private List<ChatRequestMessage> fromSpringAiMessage(Message message) {
 
 				toolMessage.getResponses().forEach(response -> {
 					Assert.isTrue(response.id() != null, "ToolResponseMessage must have an id");
-					Assert.isTrue(response.name() != null, "ToolResponseMessage must have a name");
 				});
 
 				return toolMessage.getResponses()

models/spring-ai-minimax/src/main/java/org/springframework/ai/minimax/MiniMaxChatModel.java

@@ -373,7 +373,6 @@ else if (message.getMessageType() == MessageType.TOOL) {
 
 				toolMessage.getResponses().forEach(response -> {
 					Assert.isTrue(response.id() != null, "ToolResponseMessage must have an id");
-					Assert.isTrue(response.name() != null, "ToolResponseMessage must have a name");
 				});
 
 				return toolMessage.getResponses()

models/spring-ai-mistral-ai/src/main/java/org/springframework/ai/mistralai/MistralAiChatModel.java

@@ -345,7 +345,6 @@ else if (message instanceof ToolResponseMessage toolResponseMessage) {
 
 				toolResponseMessage.getResponses().forEach(response -> {
 					Assert.isTrue(response.id() != null, "ToolResponseMessage must have an id");
-					Assert.isTrue(response.name() != null, "ToolResponseMessage must have a name");
 				});
 
 				return toolResponseMessage.getResponses()

models/spring-ai-moonshot/src/main/java/org/springframework/ai/moonshot/MoonshotChatModel.java

@@ -323,7 +323,6 @@ else if (message.getMessageType() == MessageType.TOOL) {
 
 				toolMessage.getResponses().forEach(response -> {
 					Assert.isTrue(response.id() != null, "ToolResponseMessage must have an id");
-					Assert.isTrue(response.name() != null, "ToolResponseMessage must have a name");
 				});
 
 				return toolMessage.getResponses()

models/spring-ai-openai/src/main/java/org/springframework/ai/openai/OpenAiChatModel.java

@@ -459,7 +459,6 @@ else if (message.getMessageType() == MessageType.TOOL) {
 
 				toolMessage.getResponses().forEach(response -> {
 					Assert.isTrue(response.id() != null, "ToolResponseMessage must have an id");
-					Assert.isTrue(response.name() != null, "ToolResponseMessage must have a name");
 				});
 
 				return toolMessage.getResponses()

models/spring-ai-zhipuai/src/main/java/org/springframework/ai/zhipuai/ZhiPuAiChatModel.java

@@ -340,7 +340,6 @@ else if (message.getMessageType() == MessageType.TOOL) {
 
 				toolMessage.getResponses().forEach(response -> {
 					Assert.isTrue(response.id() != null, "ToolResponseMessage must have an id");
-					Assert.isTrue(response.name() != null, "ToolResponseMessage must have a name");
 				});
 
 				return toolMessage.getResponses()