- attachmentUploader: downloadDiscordAttachment retries CDN timeouts
via retryWithBackoff (ATTACHMENT_RETRY_ATTEMPTS, 1s-8s backoff);
AbortError normalized so 403/404 refresh path never fires on timeouts
- attachmentUploader: uploadAttachmentToTele uses ATTACHMENT_RETRY_ATTEMPTS
instead of retries:0 (Tele 5xx under load was failing outright)
- wikipediaClient: wikipediaSummary retries once on abort/timeout
(100% of prod summary errors were aborts); termGlossary drops its
redundant second call (was up to 4 reqs/term under miss+retry)
Verified: typecheck + lint clean, 210/210 tests pass
asepharyana
9685fa02be