docs(http1): document the HTTP/1.1 stack, and expose the client's timeout

README: HTTP/1.1 in the intro, feature list, module list, browser-build
exclusions, dependencies and test list, plus a Components section
covering both classes, the standalone codec, what is and is not
implemented, the smuggling-shaped inputs that are rejected, and an
explicit note that this path is plaintext and belongs behind a TLS
terminator.

ClientHTTP1::timeout was hard-coded and invisible; make it a public
member alongside `limits`, mirroring the listener's timeouts.

Also pipelining coverage in ShouldSendRecieveHTTP1: two requests written
before either is answered, driven from a raw socket since ClientHTTP1
waits for each response.

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

interfaces/Crafter.Network-ClientHTTP1.cppm

@@ -60,6 +60,9 @@ namespace Crafter {
 
         // Limits applied to responses. Set before the first Send().
         HTTP1::MessageLimits limits;
+        // How long to wait for the next piece of a response before giving
+        // up on a server that accepted the connection and then went quiet.
+        std::chrono::milliseconds timeout{30000};
 
     private:
         struct Impl;