fix(qa-lab): tighten telegram canary matching

extensions/qa-lab/src/telegram-live.runtime.test.ts

@@ -166,6 +166,29 @@ describe("telegram live qa runtime", () => {
     ).toBe("match");
   });
 
+  it("classifies threaded blank sut replies as matches", () => {
+    expect(
+      __testing.classifyCanaryReply({
+        groupId: "-100123",
+        sutBotId: 88,
+        driverMessageId: 55,
+        message: {
+          updateId: 3,
+          messageId: 11,
+          chatId: -100123,
+          senderId: 88,
+          senderIsBot: true,
+          senderUsername: "sut_bot",
+          text: "",
+          replyToMessageId: 55,
+          timestamp: 1_700_000_002_000,
+          inlineButtons: [],
+          mediaKinds: ["photo"],
+        },
+      }),
+    ).toBe("match");
+  });
+
   it("redacts observed message content by default in artifacts", () => {
     expect(
       __testing.buildObservedMessagesArtifact({

extensions/qa-lab/src/telegram-live.runtime.ts

@@ -325,7 +325,7 @@ async function flushTelegramUpdates(token: string) {
     }
     offset = (updates.at(-1)?.update_id ?? offset) + 1;
   }
-  return offset;
+  throw new Error("timed out after 15000ms draining Telegram updates");
 }
 
 async function sendGroupMessage(token: string, groupId: string, text: string) {
@@ -471,8 +471,7 @@ function classifyCanaryReply(params: {
 }) {
   if (
     params.message.chatId !== Number(params.groupId) ||
-    params.message.senderId !== params.sutBotId ||
-    !params.message.text.trim()
+    params.message.senderId !== params.sutBotId
   ) {
     return "ignore" as const;
   }