v2: rewrote test.sh — set -eo pipefail, recursive .java collection from /app, javac PIPESTATUS check + early return, post-run awk gate requiring tests_found>0 AND failed=0 AND aborted=0 AND containers_failed=0; eliminates [0 tests found]=PASS false positive. Dropped stack-junit-3173 (contained real-looking AWS access key from upstream).

tasks.parquet

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