[codex] Restore subagent alias card matching (#614) #6479

Job	Run time
build-and-check	3m 18s
test-integration-web	47s
test-integration-packages/billing	1m 7s
test-integration-sdk	1m 21s
test-packages/internal	48s
test-.agents	44s
test-web	1m 4s
test-common	39s
test-integration-packages/agent-runtime	46s
test-sdk	54s
test-packages/agent-runtime	41s
test-cli	52s
test-integration-cli	43s
test-integration-packages/internal	1m 10s
test-packages/billing	50s
test-integration-common	42s
	16m 26s

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