fix(gateway): include resolved node path in systemd unit

tests/hermes_cli/test_gateway_service.py

@@ -61,6 +61,13 @@ class TestGeneratedSystemdUnits:
         assert "ExecStop=" not in unit
         assert "TimeoutStopSec=60" in unit
 
+    def test_user_unit_includes_resolved_node_directory_in_path(self, monkeypatch):
+        monkeypatch.setattr(gateway_cli.shutil, "which", lambda cmd: "/home/test/.nvm/versions/node/v24.14.0/bin/node" if cmd == "node" else None)
+
+        unit = gateway_cli.generate_systemd_unit(system=False)
+
+        assert "/home/test/.nvm/versions/node/v24.14.0/bin" in unit
+
     def test_system_unit_avoids_recursive_execstop_and_uses_extended_stop_timeout(self):
         unit = gateway_cli.generate_systemd_unit(system=True)