Add /model aliases for mode commands (#680) #6629

Job	Run time
build-and-check	2m 58s
test-integration-packages/internal	1m 10s
test-integration-packages/billing	1m 1s
test-integration-common	52s
test-integration-packages/agent-runtime	46s
test-integration-cli	41s
test-integration-sdk	1m 17s
test-integration-web	40s
test-cli	48s
test-.agents	48s
test-packages/internal	53s
test-common	51s
test-packages/billing	48s
test-packages/agent-runtime	41s
test-web	58s
test-sdk	54s
	16m 6s

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