wind: Spawn a new client process after startup

Also, create the socket after dropping privileges.

libos/src/Process.cpp

@@ -8,6 +8,7 @@
  */
 
 #include <errno.h>
+#include <luna/DebugLog.h>
 #include <os/Process.h>
 #include <stdlib.h>
 #include <sys/syscall.h>
@@ -92,9 +93,16 @@ namespace os
     Result<pid_t> Process::spawn(StringView path, Slice<StringView> args, bool search_in_path)
     {
         Vector<const char*> argv;
-        for (const auto& arg : args) { TRY(argv.try_append(arg.chars())); }
+        for (const auto& arg : args)
+        {
+            TRY(argv.try_append(arg.chars()));
+            dbgln("os::Process:spawn() adding new argument: %s", arg.chars());
+        }
         TRY(argv.try_append(nullptr));
 
+        dbgln("os::Process:spawn() invoking do_spawn(): path=%s, argv=%p, envp=%p", path.chars(),
+              const_cast<char**>(argv.data()), environ);
+
         return do_spawn(path.chars(), const_cast<char**>(argv.data()), environ, search_in_path);
     }