Four shipped fixes, one open defect (CG-36), and five issues closed because
measurement contradicted them. The headline is that the reported symptom was
not an explore bug at all — it was a degraded index (CG-33), and the reported
query answers correctly on a clean rebuild with no explore change.
Records the two traps that cost real time and are now guarded in tooling: the
nonexistent .codegraph/graph.db path that sqlite3 silently creates, and
ab-new-vs-baseline.sh swapping src/ mid-run so a commit captures baseline
sources.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>