Stabilize ccweb codex app runtime

scripts/mock-codex-app-server.js

@@ -162,6 +162,49 @@ function completeTurn(thread, turnId, text, status = 'completed') {
     });
   }
 
+  if (/huge output/i.test(text)) {
+    const hugeOutput = `huge-output-start\n${'0123456789abcdef'.repeat(30000)}\nhuge-output-end\n`;
+    send({
+      method: 'item/started',
+      params: {
+        threadId: thread.id,
+        turnId,
+        startedAtMs: Date.now(),
+        item: {
+          id: 'huge-tool',
+          type: 'commandExecution',
+          command: '/bin/bash -lc huge-output',
+          status: 'inProgress',
+        },
+      },
+    });
+    send({
+      method: 'item/commandExecution/outputDelta',
+      params: {
+        threadId: thread.id,
+        turnId,
+        itemId: 'huge-tool',
+        delta: hugeOutput,
+      },
+    });
+    send({
+      method: 'item/completed',
+      params: {
+        threadId: thread.id,
+        turnId,
+        completedAtMs: Date.now(),
+        item: {
+          id: 'huge-tool',
+          type: 'commandExecution',
+          command: '/bin/bash -lc huge-output',
+          aggregatedOutput: hugeOutput,
+          exitCode: 0,
+          status: 'completed',
+        },
+      },
+    });
+  }
+
   if (/subagent|collab/i.test(text)) {
     send({
       method: 'item/started',