Fix issue with Jellyfin using local IP adress not server public URL, now pulic URL is set in plugin.

Jellyfin.Plugin.SRFPlay/Services/StreamProxyService.cs

@@ -403,6 +403,19 @@ public class StreamProxyService : IDisposable
         var baseUri = new Uri(originalBaseUrl);
         var baseUrl = $"{baseUri.Scheme}://{baseUri.Host}{string.Join('/', baseUri.AbsolutePath.Split('/')[..^1])}";
 
+        // Extract itemId query parameter from proxyBaseUrl to propagate it
+        var itemIdParam = string.Empty;
+        var queryMarker = "?itemId=";
+        if (proxyBaseUrl.Contains(queryMarker, StringComparison.Ordinal))
+        {
+            var queryStart = proxyBaseUrl.IndexOf(queryMarker, StringComparison.Ordinal);
+            if (queryStart >= 0)
+            {
+                itemIdParam = proxyBaseUrl[queryStart..];
+                proxyBaseUrl = proxyBaseUrl[..queryStart]; // Remove query from base URL
+            }
+        }
+
         // Pattern to match .m3u8 and .ts/.mp4 segment references
         var pattern = @"(?:^|\n)([^#\n][^\n]*\.(?:m3u8|ts|mp4|m4s|aac)[^\n]*)";
 
@@ -416,11 +429,11 @@ public class StreamProxyService : IDisposable
             {
                 // Rewrite absolute URLs to proxy
                 var relativePath = url.Replace(baseUrl + "/", string.Empty, StringComparison.Ordinal);
-                return $"\n{proxyBaseUrl}/{relativePath}";
+                return $"\n{proxyBaseUrl}/{relativePath}{itemIdParam}";
             }
 
             // Relative URL - rewrite to proxy
-            return $"\n{proxyBaseUrl}/{url}";
+            return $"\n{proxyBaseUrl}/{url}{itemIdParam}";
         });
 
         return rewritten;