[codex] Restore subagent alias card matching #549

Job	Run time
build-freebuff	1m 19s
build-and-smoke-freebuff-windows	3m 27s
e2e-slash-commands	1m 5s
e2e-code-edit	1m 13s
e2e-agent-startup	2m 49s
e2e-ads-behavior	1m 4s
e2e-help-command	1m 12s
e2e-terminal-command	1m 14s
e2e-startup	1m 25s
e2e-version	1m 3s
	15m 51s

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