feat: summarize codex app server turns

tests/fixtures/codex-app-server-runtime.mjs

@@ -431,6 +431,60 @@ rl.on("line", (line) => {
     return;
   }
 
+  if (message.method === "thread/turns/list") {
+    const threadId = message.params?.threadId;
+    if (threadId === "thr-active") {
+      send({
+        id: message.id,
+        result: {
+          data: [
+            {
+              id: "turn-active-2",
+              status: "running",
+              createdAt: "2026-06-03T08:18:00.000Z",
+              updatedAt: "2026-06-03T08:21:00.000Z",
+              userInput: "private active turn text should not leak",
+              items: [{ type: "message", content: "private item content should not leak" }],
+            },
+            {
+              id: "turn-active-1",
+              status: "completed",
+              createdAt: "2026-06-03T08:00:00.000Z",
+              updatedAt: "2026-06-03T08:10:00.000Z",
+            },
+          ],
+          nextCursor: null,
+          backwardsCursor: null,
+        },
+      });
+      return;
+    }
+    if (threadId === "thr-idle") {
+      send({
+        id: message.id,
+        result: {
+          data: [
+            {
+              id: "turn-idle-1",
+              status: { type: "completed" },
+              createdAt: "2026-06-03T07:00:00.000Z",
+              updatedAt: "2026-06-03T07:30:00.000Z",
+              userInput: "private idle turn text should not leak",
+            },
+          ],
+          nextCursor: null,
+          backwardsCursor: null,
+        },
+      });
+      return;
+    }
+    send({
+      id: message.id,
+      result: { data: [], nextCursor: null, backwardsCursor: null },
+    });
+    return;
+  }
+
   if (message.method === "thread/resume") {
     send({
       id: message.id,