feat: Add Grid View and Monthly Summary pages with workday management

- Implement GridView.razor for displaying a tabular view of workdays in the current month.
- Create MonthlySummary.razor to show a summary of worked hours, income, and day types for the selected month.
- Introduce WorkDayEditor.razor for adding and editing workday entries with detailed calculations.
- Update Home.razor to include links to the new Grid View and Monthly Summary pages.
- Add IWorkDayService interface and CouchbaseLiteWorkDayService implementation for managing workday data.
- Define domain models: WorkDayDocument, MonthlySummaryModel, and CoeffSnapshotDocument for data structure.
- Enhance CouchbaseLiteDatabaseProvider to include a collection for workdays.
- Update app settings and services to support new features.
- Add CSS styles for calendar view and table formatting.

Domain/CoeffSnapshotDocument.cs

@@ -0,0 +1,16 @@
+namespace WorkTracker.Domain;
+
+public sealed class CoeffSnapshotDocument
+{
+    public decimal StandardWorkHoursPerDay { get; set; } = 8m;
+
+    public decimal LunchBreakHours { get; set; } = 1m;
+
+    public decimal HourlyGrossRate { get; set; } = 17.5m;
+
+    public decimal ProfitabilityCoefficient { get; set; } = 0.67m;
+
+    public decimal InpsRate { get; set; } = 0.2607m;
+
+    public decimal SubstituteTaxRate { get; set; } = 0.15m;
+}

Domain/MonthlySummaryModel.cs

@@ -0,0 +1,30 @@
+namespace WorkTracker.Domain;
+
+public sealed class MonthlySummaryModel
+{
+    public int Year { get; set; }
+
+    public int Month { get; set; }
+
+    public decimal TotalWorkedHours { get; set; }
+
+    public int OfficeDays { get; set; }
+
+    public int HomeDays { get; set; }
+
+    public int HolidayDays { get; set; }
+
+    public int SickDays { get; set; }
+
+    public int DaysOff { get; set; }
+
+    public int ClosureDays { get; set; }
+
+    public decimal TotalHoursOff { get; set; }
+
+    public decimal TotalGrossIncome { get; set; }
+
+    public decimal TotalNetIncome { get; set; }
+
+    public int TotalWorkingDays { get; set; }
+}

Domain/WorkDayDocument.cs

@@ -0,0 +1,40 @@
+namespace WorkTracker.Domain;
+
+public sealed class WorkDayDocument
+{
+    public string Id { get; set; } = string.Empty;
+
+    public DateOnly Date { get; set; }
+
+    public TimeOnly? StartTime { get; set; }
+
+    public TimeOnly? ProjectedExitTime { get; set; }
+
+    public TimeOnly? ActualExitTime { get; set; }
+
+    public DayType DayType { get; set; } = DayType.None;
+
+    public decimal ExtraHoursDelta { get; set; }
+
+    public decimal WorkedHoursBase { get; set; }
+
+    public decimal WorkedHoursFinal { get; set; }
+
+    public decimal HoursOff { get; set; }
+
+    public decimal GrossIncome { get; set; }
+
+    public decimal NetIncome { get; set; }
+
+    public bool IsWeekend { get; set; }
+
+    public bool IsItalianFestivity { get; set; }
+
+    public string? Notes { get; set; }
+
+    public CoeffSnapshotDocument CoeffSnapshot { get; set; } = new();
+
+    public DateTimeOffset CreatedAtUtc { get; set; } = DateTimeOffset.UtcNow;
+
+    public DateTimeOffset UpdatedAtUtc { get; set; } = DateTimeOffset.UtcNow;
+}