fix(ci): close speculative browser fixture connections

scripts/lib/browser-scenario-storage-e2e.mjs

@@ -176,6 +176,9 @@ const startStorageSite = async () => {
     origin: `http://127.0.0.1:${port}`,
     close: async () => {
       server.close();
+      // Chrome can leave speculative TCP connections without an HTTP request;
+      // server.close() alone waits indefinitely for those owned sockets.
+      server.closeAllConnections();
       await once(server, "close");
     },
   };

scripts/verify-real-browser.mjs

@@ -277,11 +277,13 @@ try {
     throw new Error("Scenario attachment terminated its external browser");
 
   const profilesBefore = await scenarioProfiles();
+  process.stderr.write("Browser verifier: scenario environment\n");
   const scenarioEnvironment = await verifyScenarioEnvironment(
     endpoint,
     target,
     site.origin,
   );
+  process.stderr.write("Browser verifier: scenario storage\n");
   const scenarioStorage = await verifyScenarioStorage({
     executable,
     endpoint,
@@ -339,7 +341,9 @@ try {
         `Browser scenario included unselected structured value: ${unselectedValue}`,
       );
 
+  process.stderr.write("Browser verifier: large screenshot\n");
   const largeScreenshot = await verifyLargeScreenshotE2e(endpoint, site.origin);
+  process.stderr.write("Browser verifier: popup coverage\n");
   const popupEvents = await verifyPopupEventCoverage(executable);
   const networkEvidence = await verifyBrowserNetworkEvidence(
     executable,