fix: handle launchctl kickstart exit code 113 in launchd_start()

launchctl kickstart returns exit code 113 ("Could not find service") when
the plist exists but the job hasn't been bootstrapped into the runtime domain.
The existing recovery path only caught exit code 3 ("unloaded"), causing an
unhandled CalledProcessError.

Exit code 113 means the same thing practically -- the service definition needs
bootstrapping before it can be kicked. Add it to the same recovery path that
already handles exit 3, matching the existing pattern in launchd_stop().

Follow-up: add a unit test covering the 113 recovery path.

tests/hermes_cli/test_gateway_service.py

@@ -205,6 +205,33 @@ class TestLaunchdServiceRecovery:
             ["launchctl", "kickstart", target],
         ]
 
+    def test_launchd_start_reloads_on_kickstart_exit_code_113(self, tmp_path, monkeypatch):
+        """Exit code 113 (\"Could not find service\") should also trigger bootstrap recovery."""
+        plist_path = tmp_path / "ai.hermes.gateway.plist"
+        plist_path.write_text(gateway_cli.generate_launchd_plist(), encoding="utf-8")
+        label = gateway_cli.get_launchd_label()
+
+        calls = []
+        domain = gateway_cli._launchd_domain()
+        target = f"{domain}/{label}"
+
+        def fake_run(cmd, check=False, **kwargs):
+            calls.append(cmd)
+            if cmd == ["launchctl", "kickstart", target] and calls.count(cmd) == 1:
+                raise gateway_cli.subprocess.CalledProcessError(113, cmd, stderr="Could not find service")
+            return SimpleNamespace(returncode=0, stdout="", stderr="")
+
+        monkeypatch.setattr(gateway_cli, "get_launchd_plist_path", lambda: plist_path)
+        monkeypatch.setattr(gateway_cli.subprocess, "run", fake_run)
+
+        gateway_cli.launchd_start()
+
+        assert calls == [
+            ["launchctl", "kickstart", target],
+            ["launchctl", "bootstrap", domain, str(plist_path)],
+            ["launchctl", "kickstart", target],
+        ]
+
     def test_launchd_status_reports_local_stale_plist_when_unloaded(self, tmp_path, monkeypatch, capsys):
         plist_path = tmp_path / "ai.hermes.gateway.plist"
         plist_path.write_text("<plist>old content</plist>", encoding="utf-8")