Suppress expired exec approval followup warnings (#66685)

* fix(agents): suppress expired approval followup warnings

* fix(agents): suppress expired approval followup warnings

---------

Co-authored-by: openclaw-clownfish[bot] <280122609+openclaw-clownfish[bot]@users.noreply.github.com>

src/agents/bash-tools.exec-host-shared.test.ts

@@ -167,6 +167,39 @@ describe("sendExecApprovalFollowupResult", () => {
     );
   });
 
+  it.each([
+    {
+      name: "direct gateway code",
+      error: Object.assign(new Error("approval not found"), {
+        gatewayCode: "APPROVAL_NOT_FOUND",
+      }),
+    },
+    {
+      name: "structured invalid-request details",
+      error: Object.assign(new Error("approval not found"), {
+        gatewayCode: "INVALID_REQUEST",
+        details: { reason: "APPROVAL_NOT_FOUND" },
+      }),
+    },
+    {
+      name: "legacy message-only error",
+      error: new Error("unknown or expired approval id"),
+    },
+  ])("suppresses approval-not-found followup dispatch failures ($name)", async ({ error }) => {
+    sendExecApprovalFollowup.mockRejectedValue(error);
+
+    await sendExecApprovalFollowupResult(
+      {
+        approvalId: "approval-expired",
+        sessionKey: "agent:main:main",
+      },
+      "Exec finished",
+      { sendExecApprovalFollowup, logWarn },
+    );
+
+    expect(logWarn).not.toHaveBeenCalled();
+  });
+
   it("evicts oldest followup failure dedupe keys after reaching the cap", async () => {
     sendExecApprovalFollowup.mockRejectedValue(new Error("Channel is required"));
     const deps = { sendExecApprovalFollowup, logWarn };

src/agents/bash-tools.exec-host-shared.ts

@@ -5,6 +5,7 @@
  */
 import crypto from "node:crypto";
 import { resolveExpiresAtMsFromDurationMs } from "@openclaw/normalization-core/number-coercion";
+import { isApprovalNotFoundError } from "../infra/approval-errors.js";
 import { formatErrorMessage } from "../infra/errors.js";
 import { buildExecApprovalUnavailableReplyPayload } from "../infra/exec-approval-reply.js";
 import {
@@ -481,6 +482,9 @@ export async function sendExecApprovalFollowupResult(
         }
       : {}),
   }).catch((error: unknown) => {
+    if (isApprovalNotFoundError(error)) {
+      return;
+    }
     const message = formatErrorMessage(error);
     const key = `${target.approvalId}:${message}`;
     if (!rememberExecApprovalFollowupFailureKey(key)) {