fix: use transport activity for stale health

extensions/telegram/src/polling-session.test.ts

@@ -590,6 +590,7 @@ describe("TelegramPollingSession", () => {
       connected: false,
       lastConnectedAt: null,
       lastEventAt: null,
+      lastTransportActivityAt: null,
     });
     const connectedPatch = setStatus.mock.calls.find(
       ([patch]) => (patch as Record<string, unknown>).connected === true,
@@ -599,9 +600,11 @@ describe("TelegramPollingSession", () => {
       mode: "polling",
       lastConnectedAt: expect.any(Number),
       lastEventAt: expect.any(Number),
+      lastTransportActivityAt: expect.any(Number),
       lastError: null,
     });
     expect(connectedPatch?.lastConnectedAt).toBe(connectedPatch?.lastEventAt);
+    expect(connectedPatch?.lastTransportActivityAt).toBe(connectedPatch?.lastEventAt);
 
     abort.abort();
     resolveFirstTask();
@@ -681,6 +684,7 @@ describe("TelegramPollingSession", () => {
       mode: "polling",
       lastConnectedAt: null,
       lastEventAt: null,
+      lastTransportActivityAt: null,
     });
     expect(disconnectedPatches[1]?.[0]).toEqual({
       mode: "polling",

extensions/telegram/src/polling-status.test.ts

@@ -15,12 +15,14 @@ describe("createTelegramPollingStatusPublisher", () => {
       connected: false,
       lastConnectedAt: null,
       lastEventAt: null,
+      lastTransportActivityAt: null,
     });
     expect(setStatus).toHaveBeenNthCalledWith(2, {
       mode: "polling",
       connected: true,
       lastConnectedAt: 1234,
       lastEventAt: 1234,
+      lastTransportActivityAt: 1234,
       lastError: null,
     });
     expect(setStatus).toHaveBeenNthCalledWith(3, {

extensions/telegram/src/polling-status.ts

@@ -1,5 +1,8 @@
 import type { ChannelAccountSnapshot } from "openclaw/plugin-sdk/channel-contract";
-import { createConnectedChannelStatusPatch } from "openclaw/plugin-sdk/gateway-runtime";
+import {
+  createConnectedChannelStatusPatch,
+  createTransportActivityStatusPatch,
+} from "openclaw/plugin-sdk/gateway-runtime";
 
 type TelegramPollingStatusSink = (patch: Omit<ChannelAccountSnapshot, "accountId">) => void;
 
@@ -11,11 +14,15 @@ export function createTelegramPollingStatusPublisher(setStatus?: TelegramPolling
         connected: false,
         lastConnectedAt: null,
         lastEventAt: null,
+        lastTransportActivityAt: null,
       });
     },
     notePollSuccess(at = Date.now()) {
       setStatus?.({
         ...createConnectedChannelStatusPatch(at),
+        // A successful getUpdates call proves the Telegram HTTP long-poll is alive
+        // even when the response has no user-visible updates.
+        ...createTransportActivityStatusPatch(at),
         mode: "polling",
         lastError: null,
       });