v0.6.5 — test harness verdict rule
tests/run_tests.sh now counts a suite as PASS only when it exits 0 AND prints its verdict line (': PASS' exactly, or a line starting with 'PASS ('). A suite that dies silently with exit 0 is reported as 'FAIL (no verdict line)'. Output is captured in memory and replayed before the verdict (no temp file, no fd 3, portable to Linux). New suite test_run_tests_harness.sh (census 45). Seats: GLM 5.3 / Opus 5 / Grok 4.6 cumulative GO over three rounds. PR #29 squash ee23ffc (-dev#73).