feat(*.cs & *.xaml): Add currency DTOs and integrate API for rates

Introduces new DTOs for currency data transfer, removes ScottPlot.WPF dependency, and updates CurrencyModel to include an Id. Refactors CurrenciesViewModel to fetch live currency data from the API instead of using sample data, and updates the currencies list UI for better virtualization. Also translates static text in AccountViewModel from Turkish to English.

Author: EnesEfeTokta

FinTrack/Dtos/CurrencyDtos/CalculatedRatesDto.cs

@@ -0,0 +1,9 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class CalculatedRatesDto
+    {
+        public DateTime SnapshotTimestamp { get; set; }
+        public string BaseCurrency { get; set; } = string.Empty;
+        public Dictionary<string, decimal> CrossRates { get; set; } = new();
+    }
+}

FinTrack/Dtos/CurrencyDtos/ChangeSummaryDto.cs

@@ -0,0 +1,15 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class ChangeSummaryDto
+    {
+        // Değişim Miktarı
+        public decimal? DailyChangeValue { get; set; }
+        public decimal? WeeklyChangeValue { get; set; }
+        public decimal? MonthlyChangeValue { get; set; }
+
+        // Değişim Oranı
+        public decimal? DailyChangePercentage { get; set; }
+        public decimal? WeeklyChangePercentage { get; set; }
+        public decimal? MonthlyChangePercentage { get; set; }
+    }
+}

FinTrack/Dtos/CurrencyDtos/CurrencyHistoryDto.cs

@@ -0,0 +1,14 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class CurrencyHistoryDto
+    {
+        public string BaseCurrency { get; set; } = string.Empty;
+        public string TargetCurrency { get; set; } = string.Empty;
+        public DateTime StartDate { get; set; }
+        public DateTime EndDate { get; set; }
+
+        public ChangeSummaryDto ChangeSummary { get; set; } = new();
+
+        public List<HistoricalRatePointDto> HistoricalRates { get; set; } = new();
+    }
+}

FinTrack/Dtos/CurrencyDtos/CurrencySummaryDto.cs

@@ -0,0 +1,10 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class CurrencySummaryDto
+    {
+        public int Id { get; set; }
+        public string Code { get; set; } = string.Empty;
+        public string Name { get; set; } = string.Empty;
+        public string? IconUrl { get; set; }
+    }
+}

FinTrack/Dtos/CurrencyDtos/HistoricalRatePointDto.cs

@@ -0,0 +1,8 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class HistoricalRatePointDto
+    {
+        public DateTime Date { get; set; }
+        public decimal Rate { get; set; }
+    }
+}

FinTrack/Dtos/CurrencyDtos/LatestRatesResponseDto.cs

@@ -0,0 +1,9 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class LatestRatesResponseDto
+    {
+        public string BaseCurrency { get; set; } = string.Empty;
+        public DateTime SnapshotTimestamp { get; set; }
+        public List<RateDetailDto> Rates { get; set; } = new();
+    }
+}

FinTrack/Dtos/CurrencyDtos/RateDetailDto.cs

@@ -0,0 +1,14 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class RateDetailDto
+    {
+        public int Id { get; set; }
+        public string Code { get; set; } = string.Empty;
+        public string Name { get; set; } = string.Empty;
+        public string? CountryName { get; set; }
+        public string? CountryCode { get; set; }
+        public string? IconUrl { get; set; }
+
+        public decimal Rate { get; set; }
+    }
+}

FinTrack/Dtos/CurrencyDtos/SpecificCurrencyDto.cs

@@ -0,0 +1,17 @@
+namespace FinTrackWebApi.Dtos.CurrencyDtos
+{
+    public class SpecificCurrencyDto
+    {
+        public int Id { get; set; }
+        public string CurrencyCode { get; set; } = string.Empty;
+        public string CurrencyName { get; set; } = string.Empty;
+        public string? CountryCode { get; set; }
+        public string? CountryName { get; set; }
+        public string? Status { get; set; }
+        public DateTime? AvailableFrom { get; set; }
+        public DateTime? AvailableUntil { get; set; }
+        public string? IconUrl { get; set; }
+
+        public CalculatedRatesDto? RatesInfo { get; set; }
+    }
+}

FinTrack/FinTrackForWindows.csproj

@@ -55,7 +55,6 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.0-preview.6.25358.103" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="Npgsql" Version="9.0.3" />
-    <PackageReference Include="ScottPlot.WPF" Version="5.0.55" />
     <PackageReference Include="Serilog.Extensions.Hosting" Version="9.0.1-dev-02307" />
     <PackageReference Include="Serilog.Settings.Configuration" Version="9.0.1-dev-02317" />
     <PackageReference Include="Serilog.Sinks.Debug" Version="3.0.0" />

FinTrack/Models/Currency/CurrencyModel.cs

@@ -6,6 +6,8 @@ namespace FinTrackForWindows.Models.Currency
 {
     public partial class CurrencyModel : ObservableObject
     {
+        public int Id { get; set; }
+
         [ObservableProperty]
         private string toCurrencyFlag = string.Empty;