Fix X11/CEF 'Status' typedef conflict in x11.h on Linux

X11/Xlib.h defines 'Status' (typedef int Status) which conflicts with
CefURLRequest::Status when X11 headers are processed before CEF headers.
Include cef_urlrequest.h and cef_browser.h before the X11/GTK headers in
x11.h so CEF's headers are processed while the namespace is still clean.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: linesight

src/client_handler/x11.h

@@ -4,13 +4,17 @@
 
 #pragma once
 
+// CEF headers must come before X11/GTK headers: X11/Xlib.h defines 'Status'
+// (typedef int Status) which conflicts with CefURLRequest::Status typedef.
+// Pre-including cef_urlrequest.h ensures it is processed first.
+#include "include/cef_urlrequest.h"
+#include "include/cef_browser.h"
+
 #include <X11/Xlib.h>
 #include <gtk/gtk.h>
 #include <gtk/gtkx.h>
 #include <gdk/gdkx.h>
 
-#include "include/cef_browser.h"
-
 void InstallX11ErrorHandlers();
 void SetX11WindowBounds(CefRefPtr<CefBrowser> browser,
                         int x, int y, int width, int height);