refactor: reorganize Application layer into folder structure

src/GreenHome.Application/Interfaces/IDailyReportService.cs

@@ -0,0 +1,16 @@
+namespace GreenHome.Application;
+
+public interface IDailyReportService
+{
+    /// <summary>
+    /// Gets or generates a daily analysis report for a device on a specific date
+    /// </summary>
+    /// <param name="request">Request containing device ID and Persian date</param>
+    /// <param name="cancellationToken">Cancellation token</param>
+    /// <returns>Daily report with AI analysis</returns>
+    Task<DailyReportResponse> GetOrCreateDailyReportAsync(DailyReportRequest request, CancellationToken cancellationToken);
+    
+    Task<DailyReportResponse> GetWeeklyAnalysisAsync(WeeklyAnalysisRequest request, CancellationToken cancellationToken);
+    
+    Task<DailyReportResponse> GetMonthlyAnalysisAsync(MonthlyAnalysisRequest request, CancellationToken cancellationToken);
+}