OmniRoute's SSE teardown aborts in-flight legs with
`Error [AbortError]: request_signal_aborted` on client disconnects
(open-sse/utils/streamHandler.ts getClientAbortReason), and fetch/DOM
cancellation surfaces as AbortError with an abort-flavoured message.
isClientAbortError() only matched message 'aborted'/'Aborted' plus errno
codes, so these shapes fell through shouldSwallowUncaught() and were
re-thrown from the process-level uncaughtException/unhandledRejection
handlers — killing the whole server on a routine client disconnect
(observed as repeated exit-code-7 crashes with
'uncaughtException: Error [AbortError]: request_signal_aborted').
Match AbortError by name when the message is abort-flavoured; genuine
errors that merely mention 'abort' (e.g. TypeError) still crash loudly.
Tests: new unit cases for the SSE/DOM AbortError shapes, a child-process
regression proving the process survives both benign emissions with the
production no-logger install shape, and a child-process test proving
genuine errors keep crash semantics.
Merged via /merge-batch (lote 2026-08-26, v3.8.51). Boarded no worktree combinado junto com outras ~30 PRs; validação única: typecheck/complexity/cognitive-complexity/changelog-integrity verdes, file-size rebaseado onde necessário (crescimento legítimo), lint com os mesmos 228 achados pré-existentes confirmados via sonda contra o tip puro (não introduzidos por este lote), e ~370 testes focados (unit + vitest) passando. Obrigado pela contribuição.
