Benchmark client requests with a large cookie jar
Merged
KL
19d ago+8+8+0123456789-0-0-0123456789
Add a CodSpeed benchmark for a client GET with 1,000 cookies spread across 500 domains, the scenario reported in #1282. It gives a baseline before the follow-up change that stops copying the client cookie jar on every request.
AI Disclaimer
This PR was developed with the assistance of either Claude or Codex. I've reviewed and verified the changes.