[codex] Add Freebuff live usage dashboard #651

Job	Run time
build-freebuff	1m 13s
build-and-smoke-freebuff-windows	3m 1s
e2e-agent-startup	2m 20s
e2e-help-command	1m 8s
e2e-ads-behavior	1m 23s
e2e-version	1m 3s
e2e-startup	1m 19s
e2e-slash-commands	51s
e2e-terminal-command	56s
e2e-code-edit	1m 7s
	14m 21s

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