feat: Implement initialization exceptions handling and add API endpoint for retrieval

src/PepperDash.Essentials.Core/Web/EssentialsWebApi.cs

@@ -184,6 +184,11 @@ public class EssentialsWebApi : EssentialsDevice
                 Name = "Get Routing Devices and TieLines",
                 RouteHandler = new GetRoutingDevicesAndTieLinesHandler()
             },
+            new HttpCwsRoute("initializationExceptions")
+            {
+                Name = "Get Initialization Exceptions",
+                RouteHandler = new GetInitializationExceptionsRequestHandler()
+            }
         };
 
         AddRoute(routes);
@@ -296,4 +301,5 @@ public class EssentialsWebApi : EssentialsDevice
 
         Debug.LogMessage(LogEventLevel.Information, this, new string('-', 50));
     }
-}
+}
+

src/PepperDash.Essentials.Core/Web/RequestHandlers/GetInitializationExceptionRequestHandler.cs

@@ -0,0 +1,50 @@
+
+using Crestron.SimplSharp.WebScripting;
+using System.Collections.Generic;
+using System.Text;
+using PepperDash.Essentials.Core.DeviceTypeInterfaces;
+using PepperDash.Core.Web.RequestHandlers;
+using System.Linq;
+
+namespace PepperDash.Essentials.Core.Web.RequestHandlers;
+
+/// <summary>
+/// Request handler for retrieving initialization exceptions from the control system.
+/// </summary>
+public class GetInitializationExceptionsRequestHandler : WebApiBaseRequestHandler
+{
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="GetInitializationExceptionsRequestHandler"/> class.
+    /// </summary>
+    public GetInitializationExceptionsRequestHandler() : base(true) { }
+
+    /// <inheritdoc />
+    protected override void HandleGet(HttpCwsContext context)
+    {
+        var exceptions = (Global.ControlSystem as IInitializationExceptions)?.InitializationExceptions ?? new List<System.Exception>();
+
+        var response = Newtonsoft.Json.JsonConvert.SerializeObject(new
+        {
+            Exceptions = exceptions.Select(e => new
+            {
+                Message = e.Message,
+                StackTrace = e.StackTrace,
+                Type = e.GetType().FullName,
+                InnerException = e.InnerException != null ? new
+                {
+                    Message = e.InnerException.Message,
+                    StackTrace = e.InnerException.StackTrace,
+                    Type = e.InnerException.GetType().FullName
+                } : null
+            }).ToList()
+        });
+
+        context.Response.StatusCode = 200;
+        context.Response.StatusDescription = "OK";
+        context.Response.ContentType = "application/json";
+        context.Response.ContentEncoding = Encoding.UTF8;
+        context.Response.Write(response, false);
+        context.Response.End();
+    }
+}