Add AbortSignal.timeout() to both fetch calls in download.ts to prevent
indefinite hangs when Telegram API is slow or unresponsive.
- getTelegramFile(): 30s timeout for metadata API call
- downloadTelegramFile(): 60s timeout for file download
Both functions now accept optional timeoutMs parameter for configurability.
Fixes#6849
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
chenglun.hu
cpojer
Frank Yang
Peter Steinberger