更新框架，增加云库搜索模块

Models/CloudProduct/ImportConverters/ConverterToGoodsFactory.cs

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+using Store.Modules.CloudProduct.Entities;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Store.Modules.CloudProduct.ImportConverters
+{
+	/// <summary>
+	/// 导入商品转换工厂：按顺序尝试各转换器，返回标准商品模型。
+	/// </summary>
+	public class ConverterToGoodsFactory
+	{
+		private static readonly List<IGoodsConverter> _converters = new List<IGoodsConverter>
+		{
+			new ConverterV1(),
+		};
+
+		/// <summary>
+		/// 根据本地 JSON 文件路径转换。
+		/// </summary>
+		public static ProductEntity? Convert(string filePath)
+		{
+			if (string.IsNullOrWhiteSpace(filePath))
+				throw new ArgumentNullException(nameof(filePath));
+
+			if (!File.Exists(filePath))
+				throw new FileNotFoundException("找不到导入文件", filePath);
+
+			string content = File.ReadAllText(filePath);
+			return ConvertContent(content);
+		}
+
+		/// <summary>
+		/// 根据 JSON 内容字符串转换。
+		/// </summary>
+		public static ProductEntity? ConvertContent(string content)
+		{
+			if (string.IsNullOrWhiteSpace(content))
+				throw new ArgumentNullException(nameof(content));
+
+			foreach (IGoodsConverter item in _converters)
+			{
+				item.ReadContent(content);
+				if (item.IsMatch())
+				{
+					var goods = item.Convert();
+					if (goods != null)
+						return goods;
+				}
+			}
+
+			return null;
+		}
+	}
+}

Models/CloudProduct/ImportConverters/ConverterV1.cs

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+
+using Store.Modules.CloudProduct.Entities;
+using Store.Modules.CloudProduct.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.Json.Nodes;
+
+namespace Store.Modules.CloudProduct.ImportConverters
+{
+	/// <summary>
+	/// PDD 前端商品详情数据转换器（数据源格式见 data.txt）
+	/// </summary>
+	internal class ConverterV1 : GoodsConverterBase
+	{
+		public override string ConverterName => "ConverterV1";
+
+		public override PlatformType Platform => PlatformType.PDD;
+
+		protected override bool IsMatchProvider()
+		{
+			try
+			{
+				if (JsonNode.Parse(RawData) is not JsonObject root)
+					return false;
+
+				// data.txt：顶层包含 goods.goods_id
+				if (root["goods"] is JsonObject goodsObj && goodsObj["goods_id"] != null)
+					return true;
+
+				// 也兼容顶层直接是商品对象的情况
+				if (root["goods_id"] != null && (root["goods_name"] != null || root["title"] != null))
+					return true;
+
+				return false;
+			}
+			catch
+			{
+				return false;
+			}
+		}
+
+		protected override ProductEntity ConverterProvider()
+		{
+			if (JsonNode.Parse(RawData) is not JsonObject root)
+				throw new Exception("无法解析 PDD 商品数据");
+
+			var goodsNode = root["goods"] as JsonObject ?? root;
+			var priceNode = root["price"] as JsonObject;
+
+			var goods = new ProductEntity
+			{
+				Platform = (byte)PlatformType.PDD,
+				GoodsId = GetLong(goodsNode, "goods_id"),
+				Title = GetString(goodsNode, "goods_name")
+					?? GetString(goodsNode, "short_name")
+					?? string.Empty,
+				Description = GetString(goodsNode, "share_desc") ?? GetString(goodsNode, "short_name"),
+				ThumbUrl = GetString(goodsNode, "hd_url") ?? GetString(goodsNode, "thumb_url") ?? GetString(goodsNode, "hd_thumb_url") ?? GetString(goodsNode, "image_url"),
+				CatId1 = GetIntOrNull(goodsNode, "cat_id_1"),
+				CatId2 = GetIntOrNull(goodsNode, "cat_id_2"),
+				CatId3 = GetIntOrNull(goodsNode, "cat_id_3"),
+				CatId4 = GetIntOrNull(goodsNode, "cat_id_4"),
+				SoldQuantity = GetInt(goodsNode, "sold_quantity"),
+				Status = 0,
+			};
+
+			var price = GetPriceRange(priceNode, root);
+			goods.MinPrice = price.Min;
+			goods.MaxPrice = price.Max;
+
+			return goods;
+		}
+
+		private static string? GetString(JsonObject? obj, string key)
+		{
+			if (obj == null || !obj.TryGetPropertyValue(key, out var node) || node == null)
+				return null;
+
+			if (node is JsonValue value && value.TryGetValue<string>(out var str))
+				return str;
+
+			return node.ToJsonString();
+		}
+
+		private static long GetLong(JsonObject? obj, string key)
+		{
+			if (obj == null || !obj.TryGetPropertyValue(key, out var node) || node == null)
+				return 0;
+
+			if (node is JsonValue value)
+			{
+				if (value.TryGetValue<long>(out var l)) return l;
+				if (value.TryGetValue<decimal>(out var d)) return (long)d;
+				if (long.TryParse(value.ToString(), out var l2)) return l2;
+			}
+
+			return 0;
+		}
+
+		private static int GetInt(JsonObject? obj, string key)
+		{
+			if (obj == null || !obj.TryGetPropertyValue(key, out var node) || node == null)
+				return 0;
+
+			if (node is JsonValue value)
+			{
+				if (value.TryGetValue<int>(out var i)) return i;
+				if (value.TryGetValue<long>(out var l)) return (int)l;
+				if (int.TryParse(value.ToString(), out var i2)) return i2;
+			}
+
+			return 0;
+		}
+
+		private static int? GetIntOrNull(JsonObject? obj, string key)
+		{
+			if (obj == null || !obj.TryGetPropertyValue(key, out var node) || node == null)
+				return null;
+
+			if (node is JsonValue value)
+			{
+				if (value.TryGetValue<int>(out var i) && i > 0) return i;
+				if (value.TryGetValue<long>(out var l) && l > 0) return (int)l;
+				if (int.TryParse(value.ToString(), out var i2) && i2 > 0) return i2;
+			}
+
+			return null;
+		}
+
+		private static long? GetLongOrNull(JsonObject? obj, string key)
+		{
+			if (obj == null || !obj.TryGetPropertyValue(key, out var node) || node == null)
+				return null;
+
+			if (node is JsonValue value)
+			{
+				if (value.TryGetValue<long>(out var d)) return d;
+				if (value.TryGetValue<long>(out var l)) return l;
+				if (long.TryParse(value.ToString(), out var d2)) return d2;
+			}
+
+			return null;
+		}
+
+		/// <summary>
+		/// 计算价格区间。优先使用顶层 price 节点，其次遍历 sku。
+		/// </summary>
+		private static (long? Min, long? Max) GetPriceRange(JsonObject? priceNode, JsonObject root)
+		{
+			long? min = null;
+			long? max = null;
+
+			if (priceNode != null)
+			{
+				min = GetLongOrNull(priceNode, "min_group_price");
+				max = GetLongOrNull(priceNode, "max_group_price");
+				if (min.HasValue || max.HasValue)
+					return (min, max);
+			}
+
+			if (root["sku"] is JsonArray skuArray && skuArray.Count > 0)
+			{
+				foreach (var item in skuArray.OfType<JsonObject>())
+				{
+					var price = GetLongOrNull(item, "group_price") ?? GetLongOrNull(item, "normal_price");
+					if (price == null) continue;
+
+					min = min.HasValue ? Math.Min(min.Value, price.Value) : price;
+					max = max.HasValue ? Math.Max(max.Value, price.Value) : price;
+				}
+
+				if (min.HasValue || max.HasValue)
+					return (min, max);
+			}
+
+			return (null, null);
+		}
+	}
+}

Models/CloudProduct/ImportConverters/IGoodsConverter.cs

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+using Store.Modules.CloudProduct.Entities;
+using Store.Modules.CloudProduct.Enums;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Text.Json.Nodes;
+using System.Threading.Tasks;
+
+namespace Store.Modules.CloudProduct.ImportConverters
+{
+	/// <summary>
+	/// 导入商品数据转换器
+	/// </summary>
+	public interface IGoodsConverter
+	{
+		/// <summary>
+		/// 原始数据
+		/// </summary>
+		string RawData { get; }
+
+		/// <summary>
+		/// 获取转换器名称
+		/// </summary>
+		string ConverterName { get; }
+
+		/// <summary>
+		/// 支持的平台类型
+		/// </summary>
+		PlatformType Platform { get; }
+		/// <summary>
+		/// 读取内容
+		/// </summary>
+		/// <param name="content"></param>
+		void ReadContent(string content);
+		/// <summary>
+		/// 判断是否匹配当前转换器
+		/// </summary>
+		/// <returns>是否匹配</returns>
+		bool IsMatch();
+
+		/// <summary>
+		/// 转换为标准商品模型
+		/// </summary>
+		ProductEntity Convert();
+	}
+
+	public abstract class GoodsConverterBase : IGoodsConverter
+	{
+		private bool _isMatch = false;
+		public string RawData { get; private set; }
+		public abstract string ConverterName { get; }
+		public abstract PlatformType Platform { get; }
+
+		void IGoodsConverter.ReadContent(string filePath)
+		{
+			ReadContent(filePath);
+		}
+		protected virtual void ReadContent(string filePath)
+		{
+			RawData = filePath;
+		}
+
+
+		public virtual bool IsMatch()
+		{
+			_isMatch = true;
+			return IsMatchProvider();
+		}
+		protected abstract bool IsMatchProvider();
+
+		/// <summary>
+		/// 带校验的转换（基类统一实现）
+		/// </summary>
+		public virtual ProductEntity Convert()
+		{
+			if (_isMatch == false) throw new Exception("未校验数据");
+			try
+			{
+				JsonNode.Parse(RawData);
+			}
+			catch { throw new Exception("数据解析失败，不是有效的JSON格式"); }
+
+
+			var product = ConverterProvider();
+			if (product == null)
+				throw new Exception("转换失败");
+			// 基础校验
+			if (product.GoodsId == 0)
+				throw new Exception("商品ID不能为空");
+
+			return product;
+		}
+
+		protected abstract ProductEntity ConverterProvider();
+
+	}
+}