feat: ports - netsurf with the monkey frontend

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018Ae69wJS7sueQMUwNxV3nX

www-client/netsurf/compat/curl/curl.h

@@ -0,0 +1,28 @@
+/*
+ * Stub <curl/curl.h> for the MontaukOS NetSurf port.
+ *
+ * This is NOT a curl implementation and nothing here can perform a fetch.
+ *
+ * NetSurf is built with NETSURF_USE_CURL=NO, but that configuration is not
+ * well exercised upstream: content/fetch.c includes content/fetchers/curl.h
+ * unconditionally and only guards the *use* of fetch_curl_register() behind
+ * #ifdef WITH_CURL. That header in turn includes <curl/curl.h> and declares
+ * `extern CURLM *fetch_curl_multi`, so the type must exist for the
+ * translation unit to compile even though no curl code is built.
+ *
+ * Supplying this stub keeps the port free of patches against upstream. The
+ * alternative -- guarding the include in content/fetch.c -- is a one-line
+ * change but starts a patch series that every future NetSurf update has to
+ * be rebased onto.
+ *
+ * When fetch_montauk lands it registers itself the same way fetch_curl would,
+ * and this file stays exactly as it is.
+ */
+#ifndef _MONTAUK_COMPAT_CURL_CURL_H_
+#define _MONTAUK_COMPAT_CURL_CURL_H_
+
+/* Opaque: only ever named in a declaration that is never defined or used. */
+typedef void CURLM;
+typedef void CURL;
+
+#endif