Allow netlink for terminal network monitors

tests/release_scripts.rs

@@ -18,3 +18,15 @@ fn release_scripts_skip_stale_artifacts_when_auto_discovering() {
     assert!(publish.contains("skipping stale artifact"));
     assert!(publish.contains("actual=\"$(artifact_version \"$artifact\" || true)\""));
 }
+
+#[test]
+fn systemd_sandbox_allows_netlink_for_terminal_tools() {
+    let service = include_str!("../packaging/systemd/dosh-server.service");
+    let install = include_str!("../install.sh");
+    for raw in [service, install] {
+        assert!(
+            raw.contains("RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK"),
+            "dosh sessions must allow AF_NETLINK so tools like btop can enumerate network interfaces"
+        );
+    }
+}