jq spawned external processes that caused "fork: Resource temporarily
unavailable" on large go test -race -json output for cmd/ao. awk processes
JSON Lines inline without forking, eliminating the resource exhaustion.
Fixes: ag-m7x
- validate-go-fast.sh: switch to -json output, parse per-package durations,
warn when any package exceeds 45s threshold (configurable via
SLOW_THRESHOLD_SECS), surface DATA RACE detections explicitly
- pre-push-gate.sh: wrap race tests in 120s timeout (timeout/gtimeout),
treat timeout as non-blocking warning instead of push-blocking failure,
show failure detail tail on actual test failures
- -count=1 was already present; no change needed there