Four tasks: mtime cache-bust token + tests; install & gate Django
Debug Toolbar dev-only; profile + fix N+1 on /; profile + fix N+1 on
/payroll/ (all four tabs) with before/after summary in the final
commit message.
Execute via subagent-driven-development. Auto mode — no mid-execution
checkpoints.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>