Issue: HTTP server does not support chunked transfer encoding

Issue: HTTP server does not support chunked transfer encoding: a task in LegoFlow-SWE (Harbor dataset). The HTTP server currently returns a 501 Not Implemented error when a client sends a request with Transfer-Encoding: chunked . This prevents any HTTP/1.1 client from sending chunked POST or PUT…

The task

The HTTP server currently returns a `501 Not Implemented` error when a client sends a request with `Transfer-Encoding: chunked`. This prevents any HTTP/1.1 client from sending chunked POST or PUT data, breaking compliance and making the server unusable for streaming uploads.

Part of Lego-X/LegoFlow-SWE.