- .config/nextest.toml: hang-timeout profile (warn 60s, kill 120s)
- justfile: 'just test' = cargo nextest run --workspace + cargo test --doc
- CLAUDE.md: refresh stale Status + Commands for the real workspace + nextest
163 tests run in ~7s (vs multi-minute serial cargo test).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>