feat: 新增近24小时每小时与今日模型使用量统计接口及实现

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/HourlyTokenUsageDto.cs

@@ -0,0 +1,22 @@
+namespace Yi.Framework.AiHub.Application.Contracts.Dtos.UsageStatistics;
+
+/// <summary>
+/// 每小时Token使用量统计DTO（柱状图）
+/// </summary>
+public class HourlyTokenUsageDto
+{
+    /// <summary>
+    /// 小时时间点
+    /// </summary>
+    public DateTime Hour { get; set; }
+
+    /// <summary>
+    /// 该小时总Token消耗量
+    /// </summary>
+    public long TotalTokens { get; set; }
+
+    /// <summary>
+    /// 各模型Token消耗明细
+    /// </summary>
+    public List<ModelTokenBreakdownDto> ModelBreakdown { get; set; } = new();
+}

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/ModelTodayUsageDto.cs

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+namespace Yi.Framework.AiHub.Application.Contracts.Dtos.UsageStatistics;
+
+/// <summary>
+/// 模型今日使用量统计DTO（卡片列表）
+/// </summary>
+public class ModelTodayUsageDto
+{
+    /// <summary>
+    /// 模型ID
+    /// </summary>
+    public string ModelId { get; set; }
+
+    /// <summary>
+    /// 今日使用次数
+    /// </summary>
+    public int UsageCount { get; set; }
+
+    /// <summary>
+    /// 今日消耗总Token数
+    /// </summary>
+    public long TotalTokens { get; set; }
+}

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Application.Contracts/Dtos/UsageStatistics/ModelTokenBreakdownDto.cs

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+namespace Yi.Framework.AiHub.Application.Contracts.Dtos.UsageStatistics;
+
+/// <summary>
+/// 模型Token堆叠数据DTO（用于柱状图）
+/// </summary>
+public class ModelTokenBreakdownDto
+{
+    /// <summary>
+    /// 模型ID
+    /// </summary>
+    public string ModelId { get; set; }
+
+    /// <summary>
+    /// Token消耗量
+    /// </summary>
+    public long Tokens { get; set; }
+}