fix: normalize abort signals for telegram fetch

src/telegram/bot.create-telegram-bot.installs-grammy-throttler.test.ts

@@ -157,13 +157,12 @@ describe("createTelegramBot", () => {
       (globalThis as { Bun?: unknown }).Bun = {};
       createTelegramBot({ token: "tok" });
       const fetchImpl = resolveTelegramFetch();
-      expect(fetchImpl).toBe(fetchSpy);
-      expect(botCtorSpy).toHaveBeenCalledWith(
-        "tok",
-        expect.objectContaining({
-          client: expect.objectContaining({ fetch: fetchSpy }),
-        }),
-      );
+      expect(fetchImpl).toBeTypeOf("function");
+      expect(fetchImpl).not.toBe(fetchSpy);
+      const clientFetch = (botCtorSpy.mock.calls[0]?.[1] as { client?: { fetch?: unknown } })
+        ?.client?.fetch;
+      expect(clientFetch).toBeTypeOf("function");
+      expect(clientFetch).not.toBe(fetchSpy);
     } finally {
       globalThis.fetch = originalFetch;
       if (originalBun === undefined) {

src/telegram/bot.test.ts

@@ -284,13 +284,12 @@ describe("createTelegramBot", () => {
       (globalThis as { Bun?: unknown }).Bun = {};
       createTelegramBot({ token: "tok" });
       const fetchImpl = resolveTelegramFetch();
-      expect(fetchImpl).toBe(fetchSpy);
-      expect(botCtorSpy).toHaveBeenCalledWith(
-        "tok",
-        expect.objectContaining({
-          client: expect.objectContaining({ fetch: fetchSpy }),
-        }),
-      );
+      expect(fetchImpl).toBeTypeOf("function");
+      expect(fetchImpl).not.toBe(fetchSpy);
+      const clientFetch = (botCtorSpy.mock.calls[0]?.[1] as { client?: { fetch?: unknown } })
+        ?.client?.fetch;
+      expect(clientFetch).toBeTypeOf("function");
+      expect(clientFetch).not.toBe(fetchSpy);
     } finally {
       globalThis.fetch = originalFetch;
       if (originalBun === undefined) {

src/telegram/fetch.ts

@@ -1,11 +1,13 @@
+import { wrapFetchWithAbortSignal } from "../infra/fetch.js";
+
 // Bun-only: force native fetch to avoid grammY's Node shim under Bun.
 export function resolveTelegramFetch(proxyFetch?: typeof fetch): typeof fetch | undefined {
-  if (proxyFetch) return proxyFetch;
+  if (proxyFetch) return wrapFetchWithAbortSignal(proxyFetch);
   const fetchImpl = globalThis.fetch;
   const isBun = "Bun" in globalThis || Boolean(process?.versions?.bun);
   if (!isBun) return undefined;
   if (!fetchImpl) {
     throw new Error("fetch is not available; set channels.telegram.proxy in config");
   }
-  return fetchImpl;
+  return wrapFetchWithAbortSignal(fetchImpl);
 }

src/telegram/proxy.ts

@@ -1,10 +1,11 @@
 // @ts-nocheck
 import { ProxyAgent } from "undici";
+import { wrapFetchWithAbortSignal } from "../infra/fetch.js";
 
 export function makeProxyFetch(proxyUrl: string): typeof fetch {
   const agent = new ProxyAgent(proxyUrl);
-  return (input: RequestInfo | URL, init?: RequestInit) => {
+  return wrapFetchWithAbortSignal((input: RequestInfo | URL, init?: RequestInit) => {
     const base = init ? { ...init } : {};
     return fetch(input, { ...base, dispatcher: agent });
-  };
+  });
 }

src/telegram/send.returns-undefined-empty-input.test.ts

@@ -164,12 +164,10 @@ describe("sendMessageTelegram", () => {
     });
     try {
       await sendMessageTelegram("123", "hi", { token: "tok" });
-      expect(botCtorSpy).toHaveBeenCalledWith(
-        "tok",
-        expect.objectContaining({
-          client: expect.objectContaining({ fetch: fetchSpy }),
-        }),
-      );
+      const clientFetch = (botCtorSpy.mock.calls[0]?.[1] as { client?: { fetch?: unknown } })
+        ?.client?.fetch;
+      expect(clientFetch).toBeTypeOf("function");
+      expect(clientFetch).not.toBe(fetchSpy);
     } finally {
       globalThis.fetch = originalFetch;
       if (originalBun === undefined) {