chore(signalr): log remote IP + resolved URL for diagnostics

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/Prospect.Server.Api/Services/CloudScript/Functions/GetSignalRConnection.cs

@@ -18,11 +18,13 @@ public class GetSignalRConnection : ICloudScriptFunction<FYGetSignalRConnection,
 
     private readonly PlayFabSettings _settings;
     private readonly IHttpContextAccessor _httpContextAccessor;
+    private readonly ILogger<GetSignalRConnection> _logger;
 
-    public GetSignalRConnection(IOptions<PlayFabSettings> settings, IHttpContextAccessor httpContextAccessor)
+    public GetSignalRConnection(IOptions<PlayFabSettings> settings, IHttpContextAccessor httpContextAccessor, ILogger<GetSignalRConnection> logger)
     {
         _settings = settings.Value;
         _httpContextAccessor = httpContextAccessor;
+        _logger = logger;
     }
 
     public Task<FYGetSignalRConnectionResult> ExecuteAsync(FYGetSignalRConnection request)
@@ -31,7 +33,8 @@ public class GetSignalRConnection : ICloudScriptFunction<FYGetSignalRConnection,
         var url = _settings.SignalRURL;
 
         var remote = _httpContextAccessor.HttpContext?.Connection.RemoteIpAddress;
-        if (remote != null && IsLan(remote))
+        var lan = remote != null && IsLan(remote);
+        if (lan)
         {
             try
             {
@@ -40,6 +43,8 @@ public class GetSignalRConnection : ICloudScriptFunction<FYGetSignalRConnection,
             catch { /* keep the configured URL on any parsing issue */ }
         }
 
+        _logger.LogInformation("GetSignalRConnection: remoteIp={Remote} lan={Lan} -> {Url}", remote, lan, url);
+
         return Task.FromResult(new FYGetSignalRConnectionResult
         {
             Url = url,