feat:图片300k限制

src/views/production-safety/safetyTrainingAndEducation/employeeTrainingRecordCardManagement/employeeTrainingRecordCardManagementEdit.vue

@@ -308,9 +308,9 @@
     }
 
     // 可选：添加文件大小限制
-    const maxSize = 5 * 1024 * 1024; // 5MB
+    const maxSize = 300 * 1024 ; // 5MB
     if (file.size > maxSize) {
-      ElMessage.error('图片大小不能超过5MB');
+      ElMessage.error('图片大小不能超过300K');
       return false;
     }