feat: 添加数据库索引优化查询性能

refactor(前端): 使用useMemo和useCallback优化性能
perf(后端): 优化统计查询性能
style: 统一前端样式定义
build: 添加创建索引脚本

backend/models/ConsumableRecord.js

@@ -49,7 +49,12 @@ const ConsumableRecord = sequelize.define('ConsumableRecord', {
   }
 }, {
   tableName: 'consumable_records',
-  timestamps: true
+  timestamps: true,
+  indexes: [
+    { fields: ['consumableId'] },
+    { fields: ['type'] },
+    { fields: ['createdAt'] }
+  ]
 });
 
 ConsumableRecord.belongsTo(Consumable, {