refactor: 临时文件目录使用ruoyi.profile配置

- 移除硬编码的临时目录常量
- 使用ruoyi.profile配置（D:/ruoyi/uploadPath）
- 临时文件存储路径：{ruoyi.profile}/temp/upload
- 复用若依框架统一的文件路径配置

ccdi-project/src/main/java/com/ruoyi/ccdi/project/service/impl/CcdiFileUploadServiceImpl.java

@@ -12,6 +12,7 @@ import com.ruoyi.ccdi.project.service.ICcdiFileUploadService;
 import jakarta.annotation.Resource;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -46,10 +47,10 @@ import java.util.UUID;
 public class CcdiFileUploadServiceImpl implements ICcdiFileUploadService {
 
     /**
-     * 临时文件存储目录
-     * TODO: 应该从配置文件中读取
+     * 临时文件存储目录（基于ruoyi.profile配置）
      */
-    private static final String TEMP_FILE_DIR = System.getProperty("java.io.tmpdir") + File.separator + "ccdi-upload";
+    @Value("${ruoyi.profile}/temp/upload")
+    private String tempFileDir;
 
     @Resource
     private CcdiFileUploadRecordMapper recordMapper;
@@ -153,7 +154,7 @@ public class CcdiFileUploadServiceImpl implements ICcdiFileUploadService {
         List<String> tempFilePaths = new ArrayList<>();
         try {
             // 确保临时目录存在
-            Path tempDir = Paths.get(TEMP_FILE_DIR);
+            Path tempDir = Paths.get(tempFileDir);
             if (!Files.exists(tempDir)) {
                 Files.createDirectories(tempDir);
             }