added methods to update vanity colors and submodule bump

LightlessSyncServer/LightlessSyncServer/Hubs/LightlessHub.Functions.cs

@@ -6,6 +6,7 @@ using LightlessSync.API.Data;
 using LightlessSync.API.Dto.Group;
 using LightlessSyncShared.Metrics;
 using Microsoft.AspNetCore.SignalR;
+using System.Threading;
 
 namespace LightlessSyncServer.Hubs;
 
@@ -97,6 +98,28 @@ public partial class LightlessHub
         await _redis.RemoveAsync("UID:" + UserUID, StackExchange.Redis.CommandFlags.FireAndForget).ConfigureAwait(false);
     }
 
+    private async Task<User?> EnsureUserHasVanity(string uid, CancellationToken cancellationToken = default)
+    {
+        cancellationToken = cancellationToken == default && _contextAccessor.HttpContext != null
+            ? _contextAccessor.HttpContext.RequestAborted
+            : cancellationToken;
+
+        var user = await DbContext.Users.SingleOrDefaultAsync(u => u.UID == uid, cancellationToken).ConfigureAwait(false);
+        if (user == null)
+        {
+            _logger.LogCallWarning(LightlessHubLogger.Args("vanity check", uid, "missing user"));
+            return null;
+        }
+
+        if (user.HasVanity != true)
+        {
+            _logger.LogCallWarning(LightlessHubLogger.Args("vanity check", uid, "no vanity"));
+            return null;
+        }
+
+        return user;
+    }
+
     private async Task SendGroupDeletedToAll(List<GroupPair> groupUsers)
     {
         foreach (var pair in groupUsers)