fix(aihr): hide staging write errors

backend/ruoyi-modules/ruoyi-aihr/src/main/java/org/dromara/aihr/service/AihrUploadQueueService.java

@@ -103,7 +103,7 @@ public class AihrUploadQueueService {
             Files.createDirectories(staged.getParent());
             Files.copy(input, staged, StandardCopyOption.REPLACE_EXISTING);
         } catch (IOException e) {
-            throw new ServiceException("暂存文件写入失败：" + e.getMessage());
+            throw new ServiceException("暂存文件写入失败，请重试或联系管理员");
         }
         jdbcTemplate.update("""
             insert into aihr_knowledge_upload_item

backend/ruoyi-modules/ruoyi-aihr/src/test/java/org/dromara/aihr/service/AihrUploadQueueServiceTest.java

@@ -27,6 +27,8 @@ class AihrUploadQueueServiceTest {
         assertTrue(code.contains("new ItemRow(rs.getString(\"tenant_id\")"));
         assertTrue(code.contains("where status = 1\n                   and ("));
         assertTrue(code.contains("资料加工失败，请重试或联系管理员"));
+        assertTrue(code.contains("暂存文件写入失败，请重试或联系管理员"));
+        assertFalse(code.contains("\"暂存文件写入失败：\" + e.getMessage()"));
         assertFalse(code.contains("where tenant_id = ? and status = 1\n                   and ("));
     }
 }