Add ApiOptions and configure API settings

Added a new `ApiOptions` class to encapsulate API configuration,
including the `BaseUrl` property and `SectionName` constant.
Registered `ApiOptions` in the dependency injection container
in `Program.cs` and bound it to the "Api" section in the
configuration file. Updated `appsettings.json` to include the
"Api" section with a `BaseUrl` value of "https://localhost:8088".

EnvelopeGenerator.ReceiverUI/Options/ApiOptions.cs

@@ -0,0 +1,8 @@
+namespace EnvelopeGenerator.ReceiverUI.Options;
+
+public class ApiOptions
+{
+    public const string SectionName = "Api";
+
+    public string BaseUrl { get; set; } = string.Empty;
+}

EnvelopeGenerator.ReceiverUI/Program.cs

@@ -3,6 +3,7 @@ using Microsoft.AspNetCore.Components.Web;
 using EnvelopeGenerator.ReceiverUI;
 using DevExpress.DataAccess.Web;
 using EnvelopeGenerator.ReceiverUI.Services;
+using EnvelopeGenerator.ReceiverUI.Options;
 using DevExpress.XtraReports.Services;
 using DevExpress.Blazor.Reporting;
 using DevExpress.XtraReports.Web.Extensions;
@@ -11,6 +12,8 @@ var builder = WebAssemblyHostBuilder.CreateDefault(args);
 builder.RootComponents.Add<App>("#app");
 builder.RootComponents.Add<HeadOutlet>("head::after");
 builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
+builder.Services.Configure<ApiOptions>(opts =>
+builder.Configuration.GetSection(ApiOptions.SectionName).Bind(opts));
 builder.Services.AddScoped<EnvelopeGenerator.ReceiverUI.Services.DocumentService>();
 
 builder.Services.AddDevExpressWebAssemblyBlazorReportViewer();

EnvelopeGenerator.ReceiverUI/wwwroot/appsettings.json

@@ -0,0 +1,5 @@
+{
+  "Api": {
+    "BaseUrl": "https://localhost:8088"
+  }
+}