feat: implement kernel capability model

programs/src/reset/main.cpp

@@ -8,5 +8,10 @@
 
 extern "C" void _start() {
     montauk::print("Rebooting...\n");
-    montauk::reset();
+    int rc = montauk::reset();
+    if (rc == montauk::abi::SYS_ERR_PERMISSION)
+        montauk::print("reset: permission denied\n");
+    else
+        montauk::print("reset: reboot failed\n");
+    montauk::exit(1);
 }