设备类添加产品字段、添加物模型类，新增产品CRUD方法

Service/Interface/Config/IDeviceCommandService.cs

@@ -0,0 +1,18 @@
+using Model;
+using Model.Dto.Config;
+using System.Threading.Tasks;
+
+namespace Service.Interface.Config
+{
+    /// <summary>
+    /// 设备指令下发 服务接口
+    /// </summary>
+    public interface IDeviceCommandService
+    {
+        /// <summary>
+        /// 按物模型可写点向设备下发指令
+        /// 每次调用都会写入设备日志；网关不可达时优雅降级（记录未连通）。
+        /// </summary>
+        Task<Result> SendCommandAsync(DeviceCommandDto dto);
+    }
+}

Service/Interface/Config/IDeviceService.cs

@@ -12,9 +12,9 @@ namespace Service.Interface.Config
     public interface IDeviceService
     {
         /// <summary>
-        /// 分页查询设备列表（支持关键字搜索编号/名称/类型）
+        /// 分页查询设备列表（支持关键字搜索编号/名称/类型，可按所属产品筛选）
         /// </summary>
-        Task<Result<List<IotDeviceDto>>> GetPagedAsync(int pageIndex, int pageSize, RefAsync<int> total, string? keyword);
+        Task<Result<List<IotDeviceDto>>> GetPagedAsync(int pageIndex, int pageSize, RefAsync<int> total, string? keyword, long? productId = null);
 
         /// <summary>
         /// 根据 Id 获取设备详情

Service/Interface/Config/IProductService.cs

@@ -1,10 +1,45 @@
-namespace Service.Interface
+using Model;
+using Model.Dto.Config;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Service.Interface.Config
 {
     /// <summary>
-    /// 产品管理 服务接口
+    /// 产品管理（含产品分类）服务接口
     /// </summary>
     public interface IProductService
     {
-        // TODO: 定义 产品管理 相关方法
+        // ===== 产品分类 =====
+        /// <summary>产品分类列表</summary>
+        Task<Result<List<ProductCategoryDto>>> GetCategoriesAsync();
+
+        /// <summary>新增产品分类</summary>
+        Task<Result> AddCategoryAsync(ProductCategoryDto dto);
+
+        /// <summary>修改产品分类</summary>
+        Task<Result> UpdateCategoryAsync(ProductCategoryDto dto);
+
+        /// <summary>删除产品分类（软删除）</summary>
+        Task<Result> DeleteCategoryAsync(long id);
+
+        // ===== 产品 =====
+        /// <summary>分页查询产品列表（关键字搜型号/名称；可按分类筛选）</summary>
+        Task<Result<List<ProductDto>>> GetPagedAsync(int pageIndex, int pageSize, SqlSugar.RefAsync<int> total, string? keyword, long categoryId);
+
+        /// <summary>下拉选项（不分页，设备选择所属产品用）</summary>
+        Task<Result<List<ProductOptionDto>>> GetOptionsAsync();
+
+        /// <summary>产品详情</summary>
+        Task<Result<ProductDto>> GetByIdAsync(long id);
+
+        /// <summary>新增产品（型号唯一校验）</summary>
+        Task<Result> AddAsync(ProductDto dto);
+
+        /// <summary>修改产品</summary>
+        Task<Result> UpdateAsync(ProductDto dto);
+
+        /// <summary>删除产品（软删除）</summary>
+        Task<Result> DeleteAsync(long id);
     }
 }

Service/Interface/Config/IThingPointService.cs

@@ -0,0 +1,28 @@
+using Model;
+using Model.Dto.Config;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Service.Interface.Config
+{
+    /// <summary>
+    /// 物模型点 服务接口（产品/设备通用，按 OwnerType+OwnerId 归属）
+    /// </summary>
+    public interface IThingPointService
+    {
+        /// <summary>查询某归属下的点列表</summary>
+        Task<Result<List<ThingModelPointDto>>> GetListAsync(int ownerType, long ownerId, string? keyword);
+
+        /// <summary>查询单点详情</summary>
+        Task<Result<ThingModelPointDto>> GetByIdAsync(long id);
+
+        /// <summary>新增点（同一归属内 Code 唯一）</summary>
+        Task<Result> AddAsync(ThingModelPointDto dto);
+
+        /// <summary>修改点</summary>
+        Task<Result> UpdateAsync(ThingModelPointDto dto);
+
+        /// <summary>删除点（软删除）</summary>
+        Task<Result> DeleteAsync(long id);
+    }
+}