The SDK client fetch wrapper now applies a 30s timeout to non-streaming
reads. Without it, a socket that neither resolves nor rejects keeps the
directory bootstrap concurrency slot busy forever and the UI stays on
"loading sessions". Long-lived streams (POST prompts, the /event SSE)
are explicitly excluded so they are not cut off mid-flight.
The normalized "request timed out" error is added to the retry
allowlist alongside undici's "terminated" (the exact failure observed
in #2470 when undici tears down a half-open upstream connection); both
are transient while the managed OpenCode process restarts. Caller-
initiated aborts keep their original error shape so a user-cancelled
request is not retried.
Tests cover: GET timeout fires after the bound, POST is not timed out,
/event SSE is not timed out, caller abort wins, AbortError is not
retried, and the SDK normalized error is retried 3x.
herjarsa
39bb71a62b