refactor(exception): 优化异常处理逻辑

- 新增 ExceptionUtil工具类，用于统一处理异常
- 在 V1DatasetController 中使用 ExceptionUtil.difyException 方法包裹可能抛出异常的代码
- 移除 V1ChatController 中未使用的 Mono 导包
- 删除 ApiExceptionHandler 中的 TODO 注释

src/main/java/com/zsc/edu/dify/exception/ApiExceptionHandler.java

@@ -64,5 +64,5 @@ public class ApiExceptionHandler {
         log.error("ApiException: {}", objectMapper.writeValueAsString(Map.of("msg", ex.getMessage())));
         return new ResponseEntity<>(objectMapper.writeValueAsString(Map.of("msg", ex.getMessage())), HttpStatus.INTERNAL_SERVER_ERROR);
     }
-//TODo 403报错修改
+
 }

src/main/java/com/zsc/edu/dify/exception/ExceptionUtil.java

@@ -0,0 +1,18 @@
+package com.zsc.edu.dify.exception;
+
+import org.springframework.stereotype.Component;
+
+import java.util.function.Supplier;
+
+@Component
+public class ExceptionUtil {
+
+    public static <T> T difyException(Supplier<T> supplier) throws ApiException {
+        try {
+            return supplier.get();
+        } catch (RuntimeException e) {
+            System.err.println(e.getMessage());
+            throw new ApiException("服务器错误");
+        }
+    }
+}

src/main/java/com/zsc/edu/dify/modules/dify/controller/V1ChatController.java

@@ -14,7 +14,6 @@ import org.springframework.http.MediaType;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
 
 /**
  * @author yanghq

src/main/java/com/zsc/edu/dify/modules/dify/controller/V1DatasetController.java

@@ -1,5 +1,8 @@
 package com.zsc.edu.dify.modules.dify.controller;
 
+import com.zsc.edu.dify.exception.ApiException;
+import com.zsc.edu.dify.exception.ConstraintException;
+import com.zsc.edu.dify.exception.ExceptionUtil;
 import com.zsc.edu.dify.modules.operationLog.entity.OperationLogAnnotation;
 import io.github.guoshiqiufeng.dify.core.pojo.DifyPageResult;
 import io.github.guoshiqiufeng.dify.dataset.DifyDataset;
@@ -43,7 +46,7 @@ public class V1DatasetController {
     @PreAuthorize("hasAuthority('dify:dataset:create')")
     @OperationLogAnnotation(content = "'dify知识库文档'", operationType = "新建")
     public DocumentCreateResponse createDocumentByFile(DocumentCreateByFileRequest request){
-        return difyDataset.createDocumentByFile(request);
+        return ExceptionUtil.difyException(() -> difyDataset.createDocumentByFile(request));
     }
 
     /**