fix(browser): handle DevTools close endpoint response

lib/mcp/ccs-browser-server.cjs

@@ -1230,11 +1230,16 @@ function getTools() {
   ];
 }
 
-async function fetchJson(url, options = undefined) {
+async function fetchOk(url, options = undefined) {
   const response = await fetch(url, options);
   if (!response.ok) {
     throw new Error(`HTTP ${response.status} for ${url}`);
   }
+  return response;
+}
+
+async function fetchJson(url, options = undefined) {
+  const response = await fetchOk(url, options);
   return await response.json();
 }
 
@@ -5193,7 +5198,7 @@ async function handleClosePage(toolArgs) {
     activeRecordingSession = null;
   }
 
-  await fetchJson(`${getHttpUrl()}/json/close/${encodeURIComponent(page.id)}`);
+  await fetchOk(`${getHttpUrl()}/json/close/${encodeURIComponent(page.id)}`, { method: 'PUT' });
   const interceptSession = interceptSessionsByPageId.get(page.id);
   if (interceptSession) {
     closeSocket(interceptSession.ws);