DB-backed workspace + LangGraph agent

Frontend/server/utils/telegram.ts

@@ -0,0 +1,29 @@
+export type TelegramUpdate = Record<string, any>;
+
+export function telegramApiBase() {
+  return process.env.TELEGRAM_API_BASE || "https://api.telegram.org";
+}
+
+export function requireTelegramBotToken() {
+  const token = process.env.TELEGRAM_BOT_TOKEN;
+  if (!token) throw new Error("TELEGRAM_BOT_TOKEN is required");
+  return token;
+}
+
+export async function telegramBotApi<T>(method: string, body: unknown): Promise<T> {
+  const token = requireTelegramBotToken();
+  const res = await fetch(`${telegramApiBase()}/bot${token}/${method}`, {
+    method: "POST",
+    headers: { "content-type": "application/json" },
+    body: JSON.stringify(body),
+  });
+
+  const json = (await res.json().catch(() => null)) as any;
+  if (!res.ok || !json?.ok) {
+    const desc = json?.description || `HTTP ${res.status}`;
+    throw new Error(`Telegram API ${method} failed: ${desc}`);
+  }
+
+  return json.result as T;
+}
+