feat: Add PlayerReputation handling and WebSocket handshake for 2018 client

DorkNet.Models/Auth/Login2018.cs

@@ -102,6 +102,30 @@ public class Player2018
 
     [JsonPropertyName("AvoidJuniors")]
     public bool AvoidJuniors { get; set; }
+
+    // REQUIRED to be non-null: the post-login analytics Identify dereferences
+    // localPlayer.PlayerReputation.<field> (RecNet.cs ~NECCOFKHCAA) — a null
+    // here NREs the boot coroutine and the client hangs on splash_screen.
+    [JsonPropertyName("PlayerReputation")]
+    public PlayerReputation2018 PlayerReputation { get; set; } = new();
+}
+
+/// <summary>
+/// 2018 PlayerReputation (RecNet.HOLNFPNKNGB.Deserialize) — all int. Keys exact
+/// incl. the "Noteriety" misspelling. Must be present (non-null) on the player.
+/// </summary>
+public class PlayerReputation2018
+{
+    [JsonPropertyName("Noteriety")] public int Noteriety { get; set; }
+    [JsonPropertyName("CheerGeneral")] public int CheerGeneral { get; set; }
+    [JsonPropertyName("CheerHelpful")] public int CheerHelpful { get; set; }
+    [JsonPropertyName("CheerGreatHost")] public int CheerGreatHost { get; set; }
+    [JsonPropertyName("CheerSportsman")] public int CheerSportsman { get; set; }
+    [JsonPropertyName("CheerCreative")] public int CheerCreative { get; set; }
+    [JsonPropertyName("CheerCredit")] public int CheerCredit { get; set; }
+    [JsonPropertyName("SubscriberCount")] public int SubscriberCount { get; set; }
+    [JsonPropertyName("SubscribedCount")] public int SubscribedCount { get; set; }
+    [JsonPropertyName("SelectedCheer")] public int SelectedCheer { get; set; }
 }
 
 /// <summary>

DorkNet.Server/Compat2018/Player2018Mapper.cs

@@ -26,5 +26,6 @@ public static class Player2018Mapper
         ProfileImageName = p.ProfileImageName ?? string.Empty,
         JuniorProfile = p.IsJunior,
         HasBirthday = p.Birthday.HasValue,
+        PlayerReputation = new PlayerReputation2018 { Noteriety = p.Reputation },
     };
 }

DorkNet.Server/Controllers/API/Notification/V2/NotificationController.cs

@@ -37,6 +37,17 @@ public class NotificationController(
 
         using var ws = await HttpContext.WebSockets.AcceptWebSocketAsync();
         log.LogInformation("[notify] 2018 client opened notification WebSocket");
+
+        // HANDSHAKE: on connect the 2018 client enters PerformingHandshake and
+        // blocks ("Connecting to RecNet") until the SERVER sends a handshake
+        // message — any valid JSON object marks the channel Connected
+        // (RecNet.cs:49616-49620, JFBBMEIDBNA just needs dict != null). Without
+        // it both sides wait for each other ~35s, then the client aborts the
+        // channel and shows "Failed to connect to RecNet". Send {} immediately.
+        var handshake = System.Text.Encoding.UTF8.GetBytes("{}");
+        await ws.SendAsync(handshake, WebSocketMessageType.Text, endOfMessage: true,
+            HttpContext.RequestAborted);
+
         var buf = new byte[4096];
         try
         {