test: add regression guards for api-proxy token tracking in smoke-claude#6135

lpcox with Copilot wants to merge 2 commits into

maingithub/gh-aw-firewall:mainfrom

copilot/enable-api-proxy-in-smoke-claudegithub/gh-aw-firewall:copilot/enable-api-proxy-in-smoke-claudeCopy head branch name to clipboard