[codex] Fix local agent discovery imports (#738) #827

Job	Run time
build-freebuff	1m 14s
build-and-smoke-freebuff-windows	2m 37s
e2e-help-command	1m 3s
e2e-startup	1m 17s
e2e-version	1m 1s
e2e-agent-startup	2m 22s
e2e-ads-behavior	1m 3s
e2e-terminal-command	51s
e2e-slash-commands	56s
e2e-code-edit	59s
	13m 23s

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