fix(photon): correct gateway start command (#45566)

tests/hermes_cli/test_gateway.py

@@ -274,6 +274,20 @@ def test_gateway_start_in_container_with_operational_systemd_uses_systemd(monkey
     assert calls == [False]
 
 
+def test_gateway_start_ignores_legacy_platform_selector(monkeypatch):
+    monkeypatch.setattr(gateway, "supports_systemd_services", lambda: True)
+    monkeypatch.setattr(gateway, "is_wsl", lambda: False)
+    monkeypatch.setattr(gateway, "is_macos", lambda: False)
+
+    calls = []
+    monkeypatch.setattr(gateway, "systemd_start", lambda system=False: calls.append(system))
+
+    args = SimpleNamespace(gateway_command="start", system=False, all=False, platform="photon")
+    gateway.gateway_command(args)
+
+    assert calls == [False]
+
+
 def test_gateway_restart_on_windows_without_service_uses_detached_backend(monkeypatch):
     """Windows manual restart must not fall back to foreground run_gateway().
 

tests/hermes_cli/test_subcommands_profile_gateway.py

@@ -81,3 +81,12 @@ def test_gateway_accept_hooks_flag():
     p = _gateway_parser()
     ns = p.parse_args(["gateway", "run", "--accept-hooks"])
     assert ns.accept_hooks is True
+
+
+def test_gateway_lifecycle_accepts_legacy_platform_flag():
+    p = _gateway_parser()
+    for action in ("start", "restart", "status"):
+        ns = p.parse_args(["gateway", action, "--platform", "photon"])
+        assert ns.gateway_command == action
+        assert ns.platform == "photon"
+        assert ns.func is _h_gateway