Progress Overhaul + Profile Page and a LOT more! (#4262)

Co-authored-by: Amelia <77553571+Fesaa@users.noreply.github.com>
Co-authored-by: Robbie Davis <robbie@therobbiedavis.com>

API/Middleware/DeviceTrackingMiddleware.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Diagnostics;
+using System.Threading.Tasks;
+using API.Services;
+using API.Services.Reading;
+using API.Services.Store;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+
+namespace API.Middleware;
+#nullable enable
+
+/// <summary>
+/// Middleware that identifies and tracks device activity for authenticated requests.
+/// Runs after authentication middleware and ClientInfoMiddleware.
+/// Can be skipped on specific endpoints using [SkipDeviceTracking] attribute.
+/// </summary>
+public class DeviceTrackingMiddleware(RequestDelegate next, ILogger<DeviceTrackingMiddleware> logger)
+{
+    public async Task InvokeAsync(
+        HttpContext context,
+        IClientDeviceService clientDeviceService,
+        IDeviceTrackingService deviceTrackingService,
+        IClientInfoAccessor clientInfoAccessor,
+        IUserContext userContext)
+    {
+        try
+        {
+            var endpoint = context.GetEndpoint();
+            var skipTracking = endpoint?.Metadata.GetMetadata<SkipDeviceTrackingAttribute>() != null;
+
+            if (skipTracking)
+            {
+                await next(context);
+                return;
+            }
+
+            var userId = userContext.GetUserId();
+            var clientInfo = clientInfoAccessor.Current;
+            var clientUiFingerprint = clientInfoAccessor.CurrentUiFingerprint; // string from webapp header
+
+            if (userId.HasValue && clientInfo != null)
+            {
+                var deviceId = await deviceTrackingService.TrackDeviceAsync(
+                    userId.Value,
+                    clientInfo,
+                    clientUiFingerprint,
+                    context.RequestAborted);
+
+                ClientInfoAccessor.SetDeviceId(deviceId);
+                logger.LogTrace("Device {DeviceId} tracked for user {UserId}", deviceId, userId);
+            }
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Failed to track device activity");
+        }
+
+        await next(context);
+    }
+}
+
+/// <summary>
+/// Attribute to skip device tracking on specific endpoints.
+/// Use for high-frequency endpoints where device tracking adds unnecessary overhead.
+/// </summary>
+[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
+public class SkipDeviceTrackingAttribute : Attribute;