feat(pricing): 添加商品分类枚举并扩展商品类型枚举

- 新增 ProductCategory 枚举类，定义商品分类
- 为 ProductType 枚举增加分类关联字段
- 扩展 ProductType 枚举值并按分类分组注释
- 添加获取分类代码和描述的方法
- 实现根据代码查找枚举的静态方法
- 完善枚举类的文档注释和类型安全引用

src/main/java/com/ycwl/basic/pricing/enums/ProductCategory.java

@@ -0,0 +1,33 @@
+package com.ycwl.basic.pricing.enums;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+/**
+ * 商品分类枚举
+ */
+@Getter
+@AllArgsConstructor
+public enum ProductCategory {
+
+    VLOG("VLOG", "Vlog类"),
+    PHOTO("PHOTO", "照片类"),
+    VIDEO("VIDEO", "视频类"),
+    PRINT("PRINT", "打印类"),
+    OTHER("OTHER", "其他");
+
+    private final String code;
+    private final String description;
+
+    /**
+     * 根据代码获取枚举
+     */
+    public static ProductCategory fromCode(String code) {
+        for (ProductCategory category : values()) {
+            if (category.code.equals(code)) {
+                return category;
+            }
+        }
+        throw new IllegalArgumentException("Unknown product category code: " + code);
+    }
+}

src/main/java/com/ycwl/basic/pricing/enums/ProductType.java

@@ -9,20 +9,29 @@ import lombok.Getter;
 @Getter
 @AllArgsConstructor
 public enum ProductType {
-    
-    VLOG_VIDEO("VLOG_VIDEO", "Vlog视频"),
-    RECORDING_SET("RECORDING_SET", "录像集"),
-    PHOTO_SET("PHOTO_SET", "照相集"),
-    PHOTO_LOG("PHOTO_LOG", "pLog图"),
-    PHOTO_VLOG("PHOTO_VLOG", "pLog视频"),
-    PHOTO_PRINT("PHOTO_PRINT", "照片打印"),
-    PHOTO_PRINT_MU("PHOTO_PRINT_MU", "手机照片打印"),
-    PHOTO_PRINT_FX("PHOTO_PRINT_FX", "特效照片打印"),
-    MACHINE_PRINT("MACHINE_PRINT", "一体机打印");
-    
+
+    // VLOG类
+    VLOG_VIDEO("VLOG_VIDEO", "Vlog视频", ProductCategory.VLOG),
+    PHOTO_VLOG("PHOTO_VLOG", "pLog视频", ProductCategory.VLOG),
+
+    // 照片类
+    PHOTO("PHOTO", "照片", ProductCategory.PHOTO),
+    PHOTO_SET("PHOTO_SET", "照片集", ProductCategory.PHOTO),
+    PHOTO_LOG("PHOTO_LOG", "pLog图", ProductCategory.PHOTO),
+
+    // 视频类（素材视频）
+    RECORDING_SET("RECORDING_SET", "录像集", ProductCategory.VIDEO),
+
+    // 其他类（打印类等）
+    PHOTO_PRINT("PHOTO_PRINT", "照片打印", ProductCategory.PRINT),
+    PHOTO_PRINT_MU("PHOTO_PRINT_MU", "手机照片打印", ProductCategory.PRINT),
+    PHOTO_PRINT_FX("PHOTO_PRINT_FX", "特效照片打印", ProductCategory.PRINT),
+    MACHINE_PRINT("MACHINE_PRINT", "一体机打印", ProductCategory.PRINT);
+
     private final String code;
     private final String description;
-    
+    private final ProductCategory category;
+
     /**
      * 根据代码获取枚举
      */
@@ -34,4 +43,18 @@ public enum ProductType {
         }
         throw new IllegalArgumentException("Unknown product type code: " + code);
     }
+
+    /**
+     * 获取分类代码
+     */
+    public String getCategoryCode() {
+        return category.getCode();
+    }
+
+    /**
+     * 获取分类描述
+     */
+    public String getCategoryDescription() {
+        return category.getDescription();
+    }
 }